PPPoA server setup how to?

PPPoA server setup how to?

[arun b]

All,
How to we test PPPoA using pppd deemon...
I mean to understand the remote-server setup ?
what devie has the pppoa server and  how is the iintial hannd shake ?
 does this go with sequence of PADI, PADO,PADS .....etc... sequec?
please  respond.
Regs,
Arun

Re: PPPoA server setup how to?

[James Carlson]

arun b wrote:
> All,
> How to we test PPPoA using pppd deemon...
> I mean to understand the remote-server setup ?
> what devie has the pppoa server and  how is the iintial hannd shake ?
>  does this go with sequence of PADI, PADO,PADS .....etc... sequec?

Are you looking for PPPoA or PPPoE?  What hardware do you have?

PPP over ATM just uses ATM-related drivers and runs regular PPP.

PPPoE is quite different.  It runs over Ethernet and uses a separate
protocol to set up the point-to-point virtual link.  The messages you're
referring to (PADI, and so on) are parts of the PPPoE protocol.

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

On Tue, Jun 1, 2010 at 8:40 PM, James Carlson <carlsonj@workingcode.com> wrote:
> arun b wrote:
>> All,
>> How to we test PPPoA using pppd deemon...
>> I mean to understand the remote-server setup ?
>> what devie has the pppoa server and  how is the iintial hannd shake ?
>>  does this go with sequence of PADI, PADO,PADS .....etc... sequec?
>
> Are you looking for PPPoA or PPPoE?  What hardware do you have?
>
> PPP over ATM just uses ATM-related drivers and runs regular PPP.
>
> PPPoE is quite different.  It runs over Ethernet and uses a separate
> protocol to set up the point-to-point virtual link.  The messages you're
> referring to (PADI, and so on) are parts of the PPPoE protocol.
>
> --

Hi James,
Thanks for the info ..
Well I am looking for PPPoA explicitly, which basically uses
pppoatm.ko-driver module and pppoatm.so-lib along with pppd-deamon.
As explained above is being my client setup which I execute on, Now my
trouble/doubts is How/where to run PPPoA-server and on what device, Is
there a standard device/software available (Such as DSLAM, ISAM..etc).
Which can respond to the PPPoA-client (linux-box) packet and establish
the ppp-interface.

Pls do let me know any possible info related to this. Secondly also
any means of server configuration details.

Well I coated this (PADI, PADO,...) because, wanted to know does PPPoA
also follows these message sequence or it has new set of sequence ?

Thanks again,
Arun

Re: PPPoA server setup how to?

[James Chapman]

arun b wrote:
> On Tue, Jun 1, 2010 at 8:40 PM, James Carlson <carlsonj@workingcode.com> wrote:
>> arun b wrote:
>>> All,
>>> How to we test PPPoA using pppd deemon...
>>> I mean to understand the remote-server setup ?
>>> what devie has the pppoa server and  how is the iintial hannd shake ?
>>>  does this go with sequence of PADI, PADO,PADS .....etc... sequec?
>> Are you looking for PPPoA or PPPoE?  What hardware do you have?
>>
>> PPP over ATM just uses ATM-related drivers and runs regular PPP.
>>
>> PPPoE is quite different.  It runs over Ethernet and uses a separate
>> protocol to set up the point-to-point virtual link.  The messages you're
>> referring to (PADI, and so on) are parts of the PPPoE protocol.
>>
>> --
> 
> Hi James,
> Thanks for the info ..
> Well I am looking for PPPoA explicitly, which basically uses
> pppoatm.ko-driver module and pppoatm.so-lib along with pppd-deamon.
> As explained above is being my client setup which I execute on, Now my
> trouble/doubts is How/where to run PPPoA-server and on what device, Is
> there a standard device/software available (Such as DSLAM, ISAM..etc).
> Which can respond to the PPPoA-client (linux-box) packet and establish
> the ppp-interface.

As James said previously, for PPPoA there is no additional setup
protocol, so there is no PPPoA server. You just start pppd with
arguments that tell it which ATM interface/VPI/VCI to use. e.g.

pppd plugin pppoatm.so 0.80 192.168.1.1:192.168.1.2 passive

starts a pppd instance on ATM VPI 0, VCI 80 and assigns IP 192.168.1.1
to the local interface and 192.168.1.2 to the peer when the PPPoA peer
connects on VPI 0, VCI 80. If you are building a DSLAM-like box which
accepts connections from many PPPoA clients, you will need to start a
pppd instance for every possible ATM VPI/VCI that clients might use...

There are other pppd pppoatm plugin options for ATM LLC encapsulation
and for setting ATM QOS options. See pppd/plugins/pppoatm directory in
ppp sources for detail.

> Pls do let me know any possible info related to this. Secondly also
> any means of server configuration details.
> 
> Well I coated this (PADI, PADO,...) because, wanted to know does PPPoA
> also follows these message sequence or it has new set of sequence ?

No, they are for PPPoE.

> 
> Thanks again,
> Arun
> --
> To unsubscribe from this list: send the line "unsubscribe linux-ppp" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


-- 
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

Re: PPPoA server setup how to?

[James Carlson]

On 06/02/10 05:26, James Chapman wrote:
> starts a pppd instance on ATM VPI 0, VCI 80 and assigns IP 192.168.1.1
> to the local interface and 192.168.1.2 to the peer when the PPPoA peer
> connects on VPI 0, VCI 80. If you are building a DSLAM-like box which
> accepts connections from many PPPoA clients, you will need to start a
> pppd instance for every possible ATM VPI/VCI that clients might use...

That's one possibility.  Another would be having UNI Q.2931 signaling
set up the virtual circuit for you, and launching pppd based on the
signaling.

I don't think the existing implementation includes the bits required to
do that.  You'd have to write it yourself.  And it (obviously) depends
on what sort of connection you have to the network.

>> Well I coated this (PADI, PADO,...) because, wanted to know does PPPoA
>> also follows these message sequence or it has new set of sequence ?
> 
> No, they are for PPPoE.

The closest equivalent to those messages I can imagine would be the ATM
signaling mechanism referenced above.

But I think it's probably time to take a step back and ask the obvious
question: can you tell us what you've got (in terms of hardware,
software, and operational environment) and what you're trying to do (in
as much high-level detail as possible)?

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
> On 06/02/10 05:26, James Chapman wrote:
>> starts a pppd instance on ATM VPI 0, VCI 80 and assigns IP 192.168.1.1
>> to the local interface and 192.168.1.2 to the peer when the PPPoA peer
>> connects on VPI 0, VCI 80. If you are building a DSLAM-like box which
>> accepts connections from many PPPoA clients, you will need to start a
>> pppd instance for every possible ATM VPI/VCI that clients might use...
>
> That's one possibility.  Another would be having UNI Q.2931 signaling
> set up the virtual circuit for you, and launching pppd based on the
> signaling.
>
> I don't think the existing implementation includes the bits required to
> do that.  You'd have to write it yourself.  And it (obviously) depends
> on what sort of connection you have to the network.
>
>>> Well I coated this (PADI, PADO,...) because, wanted to know does PPPoA
>>> also follows these message sequence or it has new set of sequence ?
>>
>> No, they are for PPPoE.
>
> The closest equivalent to those messages I can imagine would be the ATM
> signaling mechanism referenced above.
>
> But I think it's probably time to take a step back and ask the obvious
> question: can you tell us what you've got (in terms of hardware,
> software, and operational environment) and what you're trying to do (in
> as much high-level detail as possible)?
>
> --
> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>

NO I am not building it for Dslam-box. well I want to run PPPoA server
at remote side device where ATM path terminates.
I am executing this is   "pppd plugin pppoatm.so 0.80
192.168.1.1:192.168.1.2 passive"  on my client(linux-box).

Just trying to put the diagram to make it clear. (Soory for not clean
diagram -:) )
------------------
|                 |
|                 |
| PPPoA     |
| CLIENT     |
|                 |
------------------
     |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
192.168.1.1:192.168.1.2 passive"
      |
      |
      |
      |
      |
      |
      |
      |
     |-|  RJ-11 connector   ??????????????
---------------------
|                    |
|                    |
| PPPoA         |
| Serv             |
|  ?????????   |
|                     |
----------------------

Here the server device and the configuration are unknown to me. Could
you help in choose the server device (Dslam, iSam like..), and
enabling it.

James,
To your question:
I have MIPS based network device currently with me. And am exploring
all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
port this solution to any of the h/w.
Now got stoped at PPPoA !!!

-Arun

Re: PPPoA server setup how to?

[arun b]

On Wed, Jun 2, 2010 at 6:39 PM, arun b <arun.s.bailur@gmail.com> wrote:
> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>> On 06/02/10 05:26, James Chapman wrote:
>>> starts a pppd instance on ATM VPI 0, VCI 80 and assigns IP 192.168.1.1
>>> to the local interface and 192.168.1.2 to the peer when the PPPoA peer
>>> connects on VPI 0, VCI 80. If you are building a DSLAM-like box which
>>> accepts connections from many PPPoA clients, you will need to start a
>>> pppd instance for every possible ATM VPI/VCI that clients might use...
>>
>> That's one possibility.  Another would be having UNI Q.2931 signaling
>> set up the virtual circuit for you, and launching pppd based on the
>> signaling.
>>
>> I don't think the existing implementation includes the bits required to
>> do that.  You'd have to write it yourself.  And it (obviously) depends
>> on what sort of connection you have to the network.
>>
>>>> Well I coated this (PADI, PADO,...) because, wanted to know does PPPoA
>>>> also follows these message sequence or it has new set of sequence ?
>>>
>>> No, they are for PPPoE.
>>
>> The closest equivalent to those messages I can imagine would be the ATM
>> signaling mechanism referenced above.
>>
>> But I think it's probably time to take a step back and ask the obvious
>> question: can you tell us what you've got (in terms of hardware,
>> software, and operational environment) and what you're trying to do (in
>> as much high-level detail as possible)?
>>
>> --
>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>
>
> NO I am not building it for Dslam-box. well I want to run PPPoA server
> at remote side device where ATM path terminates.
> I am executing this is   "pppd plugin pppoatm.so 0.80
> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>
> Just trying to put the diagram to make it clear. (Soory for not clean
> diagram -:) )
> ------------------
> |                 |
> |                 |
> | PPPoA     |
> | CLIENT     |
> |                 |
> ------------------
>     |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
> 192.168.1.1:192.168.1.2 passive"
>      |
>      |
>      |
>      |
>      |
>      |
>      |
>      |
>     |-|  RJ-11 connector   ??????????????
> ---------------------
> |                    |
> |                    |
> | PPPoA         |
> | Serv             |
> |  ?????????   |
> |                     |
> ----------------------
>
> Here the server device and the configuration are unknown to me. Could
> you help in choose the server device (Dslam, iSam like..), and
> enabling it.
>
> James,
> To your question:
> I have MIPS based network device currently with me. And am exploring
> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
> port this solution to any of the h/w.
> Now got stoped at PPPoA !!!
>
> -Arun
>


We have DSLAM device for test,  now exploring the possbilty of runing
pppoA-server..
also in addition to answer for your question...
We my  to confgiure MLPPP features...

-Arun

Re: PPPoA server setup how to?

[James Carlson]

arun b wrote:
> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>> But I think it's probably time to take a step back and ask the obvious
>> question: can you tell us what you've got (in terms of hardware,
>> software, and operational environment) and what you're trying to do (in
>> as much high-level detail as possible)?
> 
> NO I am not building it for Dslam-box. well I want to run PPPoA server
> at remote side device where ATM path terminates.
> I am executing this is   "pppd plugin pppoatm.so 0.80
> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).

"passive" is a slightly surprising option to see on the "client" side of
the connection.  Are you sure that's what you want?  And are you sure
that 0.80 are the right VPI/VCI pair for the connection?

There are two broad classes of problems that show up here: either the
ATM link isn't working, or the PPP link on top is misconfigured.  What
do you actually see when you run pppd?  Have you tried running with the
"debug" option enabled?  What log messages are produced?

If pppd is timing out in LCP with "too many" Configure-Request messages,
then the likely culprit is the ATM configuration.  Otherwise, PPP might
be involved; possibly missing authentication or L3 address information.

>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
> 192.168.1.1:192.168.1.2 passive"

It should be obvious, but the connection between these two machines
_must_ be ATM, and _not_ Ethernet.

> Here the server device and the configuration are unknown to me. Could
> you help in choose the server device (Dslam, iSam like..), and
> enabling it.

If you're not the administrator for the remote end, then I have no idea
how you might go about enabling it.  Won't you have to drive down to
your ISP's offices and break in first?

Or are you planning to set up your own PPPoA server ... ?

I'm confused by what you're saying here.

> James,
> To your question:
> I have MIPS based network device currently with me. And am exploring
> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
> port this solution to any of the h/w.
> Now got stoped at PPPoA !!!

Do you have an ATM link to a system that runs PPPoA?  If so, then do you
have configuration information (particularly VPI/VCI) for that link?  Is
it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

Hi,
Thanks for the info
First of all let me try to clear your confusion ..
1) at the client side as i already told you its linux-box and i am
running pppd (2.4)
ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx

now this box send LCP packets 10 times and the pppd terminates. as
there is no responder..
2) Now I need to  setup  responder (PPPoA-server i belive) my self
similar to  PPPoE-server in the case of pppoe test linuxPC.

so if you know about server  pls pass me the  info
Also we have alctel-iSAM which has only pppoa-relay and id doesnot
have server ......!


-Arun






On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
> arun b wrote:
>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>> But I think it's probably time to take a step back and ask the obvious
>>> question: can you tell us what you've got (in terms of hardware,
>>> software, and operational environment) and what you're trying to do (in
>>> as much high-level detail as possible)?
>>
>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>> at remote side device where ATM path terminates.
>> I am executing this is   "pppd plugin pppoatm.so 0.80
>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>
> "passive" is a slightly surprising option to see on the "client" side of
> the connection.  Are you sure that's what you want?  And are you sure
> that 0.80 are the right VPI/VCI pair for the connection?
>
> There are two broad classes of problems that show up here: either the
> ATM link isn't working, or the PPP link on top is misconfigured.  What
> do you actually see when you run pppd?  Have you tried running with the
> "debug" option enabled?  What log messages are produced?
>
> If pppd is timing out in LCP with "too many" Configure-Request messages,
> then the likely culprit is the ATM configuration.  Otherwise, PPP might
> be involved; possibly missing authentication or L3 address information.
>
>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>> 192.168.1.1:192.168.1.2 passive"
>
> It should be obvious, but the connection between these two machines
> _must_ be ATM, and _not_ Ethernet.
>
>> Here the server device and the configuration are unknown to me. Could
>> you help in choose the server device (Dslam, iSam like..), and
>> enabling it.
>
> If you're not the administrator for the remote end, then I have no idea
> how you might go about enabling it.  Won't you have to drive down to
> your ISP's offices and break in first?
>
> Or are you planning to set up your own PPPoA server ... ?
>
> I'm confused by what you're saying here.
>
>> James,
>> To your question:
>> I have MIPS based network device currently with me. And am exploring
>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>> port this solution to any of the h/w.
>> Now got stoped at PPPoA !!!
>
> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
> have configuration information (particularly VPI/VCI) for that link?  Is
> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>
> --
> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>

Re: PPPoA server setup how to?

[James Chapman]

arun b wrote:
> Hi,
> Thanks for the info
> First of all let me try to clear your confusion ..
> 1) at the client side as i already told you its linux-box and i am
> running pppd (2.4)
> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
> 
> now this box send LCP packets 10 times and the pppd terminates. as
> there is no responder..
> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
> similar to  PPPoE-server in the case of pppoe test linuxPC.
> 
> so if you know about server  pls pass me the  info

At the server

pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive

Run this on the server before starting the client. Adjust IP addresses
as required.

> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
> have server ......!

What is pppoa-relay? Are you confusing PPPoE and PPPoA?

What role does the Alcatel iSAM box play in your network? Is it between
the Linux PPPoA client and Linux PPPoA server? If so, how does it map
ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?

> 
> 
> -Arun
> 
> 
> 
> 
> 
> 
> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>> arun b wrote:
>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>> But I think it's probably time to take a step back and ask the obvious
>>>> question: can you tell us what you've got (in terms of hardware,
>>>> software, and operational environment) and what you're trying to do (in
>>>> as much high-level detail as possible)?
>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>> at remote side device where ATM path terminates.
>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>> "passive" is a slightly surprising option to see on the "client" side of
>> the connection.  Are you sure that's what you want?  And are you sure
>> that 0.80 are the right VPI/VCI pair for the connection?
>>
>> There are two broad classes of problems that show up here: either the
>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>> do you actually see when you run pppd?  Have you tried running with the
>> "debug" option enabled?  What log messages are produced?
>>
>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>> be involved; possibly missing authentication or L3 address information.
>>
>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>> 192.168.1.1:192.168.1.2 passive"
>> It should be obvious, but the connection between these two machines
>> _must_ be ATM, and _not_ Ethernet.
>>
>>> Here the server device and the configuration are unknown to me. Could
>>> you help in choose the server device (Dslam, iSam like..), and
>>> enabling it.
>> If you're not the administrator for the remote end, then I have no idea
>> how you might go about enabling it.  Won't you have to drive down to
>> your ISP's offices and break in first?
>>
>> Or are you planning to set up your own PPPoA server ... ?
>>
>> I'm confused by what you're saying here.
>>
>>> James,
>>> To your question:
>>> I have MIPS based network device currently with me. And am exploring
>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>> port this solution to any of the h/w.
>>> Now got stoped at PPPoA !!!
>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>> have configuration information (particularly VPI/VCI) for that link?  Is
>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>
>> --
>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>
> 


-- 
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

Re: PPPoA server setup how to?

[arun b]

Thank you for the quick response...

Ok I will have to check if the pppd is available in the remote (server
)device,
Now  the current availabel options for remote device are Alctel-ISAM
or Dslam-Dlink  where my ATM path  terminates.
let me verify this...

Again to clear the  confusion....
yes with above remote devices I have tested  for PPPoE on ATM
can i call this test as PPPoEoA  !!!!!

-Arun



On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
> arun b wrote:
>> Hi,
>> Thanks for the info
>> First of all let me try to clear your confusion ..
>> 1) at the client side as i already told you its linux-box and i am
>> running pppd (2.4)
>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>
>> now this box send LCP packets 10 times and the pppd terminates. as
>> there is no responder..
>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>
>> so if you know about server  pls pass me the  info
>
> At the server
>
> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>
> Run this on the server before starting the client. Adjust IP addresses
> as required.
>
>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>> have server ......!
>
> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>
> What role does the Alcatel iSAM box play in your network? Is it between
> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>
>>
>>
>> -Arun
>>
>>
>>
>>
>>
>>
>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>> arun b wrote:
>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>> software, and operational environment) and what you're trying to do (in
>>>>> as much high-level detail as possible)?
>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>> at remote side device where ATM path terminates.
>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>> "passive" is a slightly surprising option to see on the "client" side of
>>> the connection.  Are you sure that's what you want?  And are you sure
>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>
>>> There are two broad classes of problems that show up here: either the
>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>> do you actually see when you run pppd?  Have you tried running with the
>>> "debug" option enabled?  What log messages are produced?
>>>
>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>> be involved; possibly missing authentication or L3 address information.
>>>
>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>> 192.168.1.1:192.168.1.2 passive"
>>> It should be obvious, but the connection between these two machines
>>> _must_ be ATM, and _not_ Ethernet.
>>>
>>>> Here the server device and the configuration are unknown to me. Could
>>>> you help in choose the server device (Dslam, iSam like..), and
>>>> enabling it.
>>> If you're not the administrator for the remote end, then I have no idea
>>> how you might go about enabling it.  Won't you have to drive down to
>>> your ISP's offices and break in first?
>>>
>>> Or are you planning to set up your own PPPoA server ... ?
>>>
>>> I'm confused by what you're saying here.
>>>
>>>> James,
>>>> To your question:
>>>> I have MIPS based network device currently with me. And am exploring
>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>> port this solution to any of the h/w.
>>>> Now got stoped at PPPoA !!!
>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>
>>> --
>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>
>>
>
>
> --
> James Chapman
> Katalix Systems Ltd
> http://www.katalix.com
> Catalysts for your Embedded Linux software development
>
>

Re: PPPoA server setup how to?

[James Chapman]

arun b wrote:
> Thank you for the quick response...
> 
> Ok I will have to check if the pppd is available in the remote (server
> )device,
> Now  the current availabel options for remote device are Alctel-ISAM
> or Dslam-Dlink  where my ATM path  terminates.
> let me verify this...

Oh, I assumed your server was a Linux box with pppd etc. If not, we
won't be able to help you with server config here.

> Again to clear the  confusion....
> yes with above remote devices I have tested  for PPPoE on ATM
> can i call this test as PPPoEoA  !!!!!

Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
you're trying to get PPP working over a VC-muxed ATM connection.

> 
> -Arun
> 
> 
> 
> On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
>> arun b wrote:
>>> Hi,
>>> Thanks for the info
>>> First of all let me try to clear your confusion ..
>>> 1) at the client side as i already told you its linux-box and i am
>>> running pppd (2.4)
>>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>>
>>> now this box send LCP packets 10 times and the pppd terminates. as
>>> there is no responder..
>>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>>
>>> so if you know about server  pls pass me the  info
>> At the server
>>
>> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>>
>> Run this on the server before starting the client. Adjust IP addresses
>> as required.
>>
>>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>>> have server ......!
>> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>>
>> What role does the Alcatel iSAM box play in your network? Is it between
>> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
>> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>>
>>>
>>> -Arun
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>> arun b wrote:
>>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>>> software, and operational environment) and what you're trying to do (in
>>>>>> as much high-level detail as possible)?
>>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>>> at remote side device where ATM path terminates.
>>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>>> "passive" is a slightly surprising option to see on the "client" side of
>>>> the connection.  Are you sure that's what you want?  And are you sure
>>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>>
>>>> There are two broad classes of problems that show up here: either the
>>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>>> do you actually see when you run pppd?  Have you tried running with the
>>>> "debug" option enabled?  What log messages are produced?
>>>>
>>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>>> be involved; possibly missing authentication or L3 address information.
>>>>
>>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>>> 192.168.1.1:192.168.1.2 passive"
>>>> It should be obvious, but the connection between these two machines
>>>> _must_ be ATM, and _not_ Ethernet.
>>>>
>>>>> Here the server device and the configuration are unknown to me. Could
>>>>> you help in choose the server device (Dslam, iSam like..), and
>>>>> enabling it.
>>>> If you're not the administrator for the remote end, then I have no idea
>>>> how you might go about enabling it.  Won't you have to drive down to
>>>> your ISP's offices and break in first?
>>>>
>>>> Or are you planning to set up your own PPPoA server ... ?
>>>>
>>>> I'm confused by what you're saying here.
>>>>
>>>>> James,
>>>>> To your question:
>>>>> I have MIPS based network device currently with me. And am exploring
>>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>>> port this solution to any of the h/w.
>>>>> Now got stoped at PPPoA !!!
>>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>>
>>>> --
>>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>>
>>
>> --
>> James Chapman
>> Katalix Systems Ltd
>> http://www.katalix.com
>> Catalysts for your Embedded Linux software development
>>
>>
> 


-- 
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

Re: PPPoA server setup how to?

[arun b]

Well my ultimate aim is to test my client (linux-box ) i need
responder  i don't care what it is as long as it responds ...

NOw just thought came to me that,  what if i use 2 of linux-box one as
server and other as client ...
i don't know how to configure VCI/VPI on my server ..
thses values where 9.45  as this are confiugred in our by the admin DSLAM/ ISAM.

pls know me if it can be configured.

-Arun


On Wed, Jun 2, 2010 at 11:11 PM, James Chapman <jchapman@katalix.com> wrote:
> arun b wrote:
>> Thank you for the quick response...
>>
>> Ok I will have to check if the pppd is available in the remote (server
>> )device,
>> Now  the current availabel options for remote device are Alctel-ISAM
>> or Dslam-Dlink  where my ATM path  terminates.
>> let me verify this...
>
> Oh, I assumed your server was a Linux box with pppd etc. If not, we
> won't be able to help you with server config here.
>
>> Again to clear the  confusion....
>> yes with above remote devices I have tested  for PPPoE on ATM
>> can i call this test as PPPoEoA  !!!!!
>
> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
> you're trying to get PPP working over a VC-muxed ATM connection.
>
>>
>> -Arun
>>
>>
>>
>> On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
>>> arun b wrote:
>>>> Hi,
>>>> Thanks for the info
>>>> First of all let me try to clear your confusion ..
>>>> 1) at the client side as i already told you its linux-box and i am
>>>> running pppd (2.4)
>>>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>>>
>>>> now this box send LCP packets 10 times and the pppd terminates. as
>>>> there is no responder..
>>>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>>>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>>>
>>>> so if you know about server  pls pass me the  info
>>> At the server
>>>
>>> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>>>
>>> Run this on the server before starting the client. Adjust IP addresses
>>> as required.
>>>
>>>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>>>> have server ......!
>>> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>>>
>>> What role does the Alcatel iSAM box play in your network? Is it between
>>> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
>>> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>>>
>>>>
>>>> -Arun
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>> arun b wrote:
>>>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>>>> software, and operational environment) and what you're trying to do (in
>>>>>>> as much high-level detail as possible)?
>>>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>>>> at remote side device where ATM path terminates.
>>>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>>>> "passive" is a slightly surprising option to see on the "client" side of
>>>>> the connection.  Are you sure that's what you want?  And are you sure
>>>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>>>
>>>>> There are two broad classes of problems that show up here: either the
>>>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>>>> do you actually see when you run pppd?  Have you tried running with the
>>>>> "debug" option enabled?  What log messages are produced?
>>>>>
>>>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>>>> be involved; possibly missing authentication or L3 address information.
>>>>>
>>>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>>>> 192.168.1.1:192.168.1.2 passive"
>>>>> It should be obvious, but the connection between these two machines
>>>>> _must_ be ATM, and _not_ Ethernet.
>>>>>
>>>>>> Here the server device and the configuration are unknown to me. Could
>>>>>> you help in choose the server device (Dslam, iSam like..), and
>>>>>> enabling it.
>>>>> If you're not the administrator for the remote end, then I have no idea
>>>>> how you might go about enabling it.  Won't you have to drive down to
>>>>> your ISP's offices and break in first?
>>>>>
>>>>> Or are you planning to set up your own PPPoA server ... ?
>>>>>
>>>>> I'm confused by what you're saying here.
>>>>>
>>>>>> James,
>>>>>> To your question:
>>>>>> I have MIPS based network device currently with me. And am exploring
>>>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>>>> port this solution to any of the h/w.
>>>>>> Now got stoped at PPPoA !!!
>>>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>>>
>>>>> --
>>>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>>>
>>>
>>> --
>>> James Chapman
>>> Katalix Systems Ltd
>>> http://www.katalix.com
>>> Catalysts for your Embedded Linux software development
>>>
>>>
>>
>
>
> --
> James Chapman
> Katalix Systems Ltd
> http://www.katalix.com
> Catalysts for your Embedded Linux software development
>
>

Re: PPPoA server setup how to?

[James Carlson]

James Chapman wrote:
> arun b wrote:
>> Again to clear the  confusion....
>> yes with above remote devices I have tested  for PPPoE on ATM
>> can i call this test as PPPoEoA  !!!!!
> 
> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
> you're trying to get PPP working over a VC-muxed ATM connection.

You beat me to it.

It's important to note that these are *completely* different animals.
In the PPPoE with ATM case, the ATM link is really just bridging
Ethernet.  It doesn't really "know" that there's PPP traffic inside, as
it only "sees" Ethernet.

In fact, you can carry *normal* IP traffic over that same sort of
bridged ATM link without bothering to use PPPoE at all; some ADSL
providers in fact did just that -- though most were bitten by the PPPoE
bug, some were not.  It's even easier to do this, provides better
performance, and avoids the MTU hassles of PPPoE.

In the PPPoA case, the ATM link is carrying PPP frames.  The VC is
normally dedicated to just PPP in that instance.  There's no Ethernet
involved and thus no PPPoE.  (And a bit lower overhead than any of the
above schemes.)

Don't confuse the two of them.  Except for potentially using the same
raw hardware, they're quite different in terms of design.  For instance,
the ATM termination equipment in the bridged case is a "simple" Ethernet
bridge, and not much else.  In the PPPoA case, it _must_ terminate ATM
and PPP, and then, if there are any other nodes that use the link, it
must act as a router (or NAT) for the traffic that goes over it.  With
PPPoE, those parts are in the end station that runs PPPoE and PPP.

And, no, I wouldn't call the test "PPPoEoA," though that's more or less
what you'd see on the ATM link itself.  The fact that PPPoE is
"normally" run over Ethernet that's then bridged over ATM is more a
monument to Babel than anything else.  ;-}

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

I totally agree with  your concept here..
well me being new bee in PPPworld just spent month time on this and
able to test couple of....

Now the PPPoA server is  the big-catch to me  and goingon. .... :)

-Arun

On Wed, Jun 2, 2010 at 11:26 PM, James Carlson <carlsonj@workingcode.com> wrote:
> James Chapman wrote:
>> arun b wrote:
>>> Again to clear the  confusion....
>>> yes with above remote devices I have tested  for PPPoE on ATM
>>> can i call this test as PPPoEoA  !!!!!
>>
>> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
>> you're trying to get PPP working over a VC-muxed ATM connection.
>
> You beat me to it.
>
> It's important to note that these are *completely* different animals.
> In the PPPoE with ATM case, the ATM link is really just bridging
> Ethernet.  It doesn't really "know" that there's PPP traffic inside, as
> it only "sees" Ethernet.
>
> In fact, you can carry *normal* IP traffic over that same sort of
> bridged ATM link without bothering to use PPPoE at all; some ADSL
> providers in fact did just that -- though most were bitten by the PPPoE
> bug, some were not.  It's even easier to do this, provides better
> performance, and avoids the MTU hassles of PPPoE.
>
> In the PPPoA case, the ATM link is carrying PPP frames.  The VC is
> normally dedicated to just PPP in that instance.  There's no Ethernet
> involved and thus no PPPoE.  (And a bit lower overhead than any of the
> above schemes.)
>
> Don't confuse the two of them.  Except for potentially using the same
> raw hardware, they're quite different in terms of design.  For instance,
> the ATM termination equipment in the bridged case is a "simple" Ethernet
> bridge, and not much else.  In the PPPoA case, it _must_ terminate ATM
> and PPP, and then, if there are any other nodes that use the link, it
> must act as a router (or NAT) for the traffic that goes over it.  With
> PPPoE, those parts are in the end station that runs PPPoE and PPP.
>
> And, no, I wouldn't call the test "PPPoEoA," though that's more or less
> what you'd see on the ATM link itself.  The fact that PPPoE is
> "normally" run over Ethernet that's then bridged over ATM is more a
> monument to Babel than anything else.  ;-}
>
> --
> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>

Re: PPPoA server setup how to?

[James Chapman]

arun b wrote:
> Well my ultimate aim is to test my client (linux-box ) i need
> responder  i don't care what it is as long as it responds ...
> 
> NOw just thought came to me that,  what if i use 2 of linux-box one as
> server and other as client ...
> i don't know how to configure VCI/VPI on my server ..
> thses values where 9.45  as this are confiugred in our by the admin DSLAM/ ISAM.

What physical interface is used on the PPPoA client?

It sounds like your PPPoA client is a DSL modem. If not, ignore the
below. :-)

If the client is a DSL modem, you would need a DSL interface on the
Linux server box in order to connect them directly together. But you
can't use a regular DSL NIC at the server - the server and client sides
of a DSL link aren't the same - client is ATU-R and server is ATU-C. I
don't know of a DSL ATU-C NIC that Linux would be able to configure. So
you will probably have to use a DSLAM. Your best bet then is to have
your DSLAM box configured to terminate a PPPoA VC-muxed connection if it
has that capability. If not, configure the DSLAM to switch the ATM (PPP)
traffic from the DSL ingress interface to a regular ATM (fibre / coax)
uplink which goes to a Linux server equipped with a compatible ATM NIC
and run pppd there as previously described. There are many variants of
ATM physical interface (coax, single-mode fibre, multi-mode fibre,
25Mbps, 155Mbps etc), so you would need to use whatever your DSLAM boxes
have as their ATM uplink. In any case, you will need to configure your
DSLAM to match the client setup - bridged PPPoE, VC-muxed PPPoA or
perhaps even LLC-muxed PPPoA.

> pls know me if it can be configured.
> 
> -Arun
> 
> 
> On Wed, Jun 2, 2010 at 11:11 PM, James Chapman <jchapman@katalix.com> wrote:
>> arun b wrote:
>>> Thank you for the quick response...
>>>
>>> Ok I will have to check if the pppd is available in the remote (server
>>> )device,
>>> Now  the current availabel options for remote device are Alctel-ISAM
>>> or Dslam-Dlink  where my ATM path  terminates.
>>> let me verify this...
>> Oh, I assumed your server was a Linux box with pppd etc. If not, we
>> won't be able to help you with server config here.
>>
>>> Again to clear the  confusion....
>>> yes with above remote devices I have tested  for PPPoE on ATM
>>> can i call this test as PPPoEoA  !!!!!
>> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
>> you're trying to get PPP working over a VC-muxed ATM connection.
>>
>>> -Arun
>>>
>>>
>>>
>>> On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
>>>> arun b wrote:
>>>>> Hi,
>>>>> Thanks for the info
>>>>> First of all let me try to clear your confusion ..
>>>>> 1) at the client side as i already told you its linux-box and i am
>>>>> running pppd (2.4)
>>>>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>>>>
>>>>> now this box send LCP packets 10 times and the pppd terminates. as
>>>>> there is no responder..
>>>>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>>>>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>>>>
>>>>> so if you know about server  pls pass me the  info
>>>> At the server
>>>>
>>>> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>>>>
>>>> Run this on the server before starting the client. Adjust IP addresses
>>>> as required.
>>>>
>>>>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>>>>> have server ......!
>>>> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>>>>
>>>> What role does the Alcatel iSAM box play in your network? Is it between
>>>> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
>>>> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>>>>
>>>>> -Arun
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>> arun b wrote:
>>>>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>>>>> software, and operational environment) and what you're trying to do (in
>>>>>>>> as much high-level detail as possible)?
>>>>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>>>>> at remote side device where ATM path terminates.
>>>>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>>>>> "passive" is a slightly surprising option to see on the "client" side of
>>>>>> the connection.  Are you sure that's what you want?  And are you sure
>>>>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>>>>
>>>>>> There are two broad classes of problems that show up here: either the
>>>>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>>>>> do you actually see when you run pppd?  Have you tried running with the
>>>>>> "debug" option enabled?  What log messages are produced?
>>>>>>
>>>>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>>>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>>>>> be involved; possibly missing authentication or L3 address information.
>>>>>>
>>>>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>>>>> 192.168.1.1:192.168.1.2 passive"
>>>>>> It should be obvious, but the connection between these two machines
>>>>>> _must_ be ATM, and _not_ Ethernet.
>>>>>>
>>>>>>> Here the server device and the configuration are unknown to me. Could
>>>>>>> you help in choose the server device (Dslam, iSam like..), and
>>>>>>> enabling it.
>>>>>> If you're not the administrator for the remote end, then I have no idea
>>>>>> how you might go about enabling it.  Won't you have to drive down to
>>>>>> your ISP's offices and break in first?
>>>>>>
>>>>>> Or are you planning to set up your own PPPoA server ... ?
>>>>>>
>>>>>> I'm confused by what you're saying here.
>>>>>>
>>>>>>> James,
>>>>>>> To your question:
>>>>>>> I have MIPS based network device currently with me. And am exploring
>>>>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>>>>> port this solution to any of the h/w.
>>>>>>> Now got stoped at PPPoA !!!
>>>>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>>>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>>>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>>>>
>>>>>> --
>>>>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>>>>
>>>> --

-- 
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

Re: PPPoA server setup how to?

[arun b]

Hi,

Ans to Question: Yes my box has DSL interface. (h/w connecter is a RJ11).

Now I have 3 types of test setup to configure and verify..
1)DSLAM box configured to terminate a PPPoA VC-muxed connection if it
has that capability.
2)Configure the DSLAM to switch the ATM (PPP) traffic from the DSL
ingress interface to a regular ATM (fiber / coax) uplink which goes to
a Linux server equipped with a compatible ATM NIC
3) Connecting similar 2 linux boxes back over the DSL interface one is
Server(test device) other is client.


Below is the test (3) result(logs) and how I executed those..

AT Server:
=====
#pppd plugin pppoatm.so 8.35 192.168.42.42:192.168.42.43 passive
logfile ./log.txt

Arun: In PPP: start_link ,  FD = 7
Using interface ppp0
Connect: ppp0 <--> 8.35
LCP: timeout sending Config-Requests

AT Client:
=====
#pppd plugin pppoatm.so 8.35 user user1 password pass  debug  logfile ./log.txt
Arun: In PPP: start_link ,  FD = 7
using channel 1
Using interface ppp0
Connect: ppp0 <--> 8.35
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
LCP: timeout sending Config-Requests
Connection terminated.
Modem hangup

The conclusion is that, the two linx-boxes are not able to
communicate. This may be due to similar NIC type ATU-R. I guess it is
a hardware-mode.  cannot change to ATR-C ...!

Next is,  I need to explore the DLSAM possibilities.. (1) & (2).  In
point 2 you have mentioned, "Dslam ATM uplink which goes to a Linux
server equipped with a compatible ATM NIC". You mean it is client ? if
server , I didn't got the point...!
How is the test-setup ? , what all devices does it has..?

-Arun





On Thu, Jun 3, 2010 at 1:26 AM, James Chapman <jchapman@katalix.com> wrote:
> arun b wrote:
>> Well my ultimate aim is to test my client (linux-box ) i need
>> responder  i don't care what it is as long as it responds ...
>>
>> NOw just thought came to me that,  what if i use 2 of linux-box one as
>> server and other as client ...
>> i don't know how to configure VCI/VPI on my server ..
>> thses values where 9.45  as this are confiugred in our by the admin DSLAM/ ISAM.
>
> What physical interface is used on the PPPoA client?
>
> It sounds like your PPPoA client is a DSL modem. If not, ignore the
> below. :-)
>
> If the client is a DSL modem, you would need a DSL interface on the
> Linux server box in order to connect them directly together. But you
> can't use a regular DSL NIC at the server - the server and client sides
> of a DSL link aren't the same - client is ATU-R and server is ATU-C. I
> don't know of a DSL ATU-C NIC that Linux would be able to configure. So
> you will probably have to use a DSLAM. Your best bet then is to have
> your DSLAM box configured to terminate a PPPoA VC-muxed connection if it
> has that capability. If not, configure the DSLAM to switch the ATM (PPP)
> traffic from the DSL ingress interface to a regular ATM (fibre / coax)
> uplink which goes to a Linux server equipped with a compatible ATM NIC
> and run pppd there as previously described. There are many variants of
> ATM physical interface (coax, single-mode fibre, multi-mode fibre,
> 25Mbps, 155Mbps etc), so you would need to use whatever your DSLAM boxes
> have as their ATM uplink. In any case, you will need to configure your
> DSLAM to match the client setup - bridged PPPoE, VC-muxed PPPoA or
> perhaps even LLC-muxed PPPoA.
>
>> pls know me if it can be configured.
>>
>> -Arun
>>
>>
>> On Wed, Jun 2, 2010 at 11:11 PM, James Chapman <jchapman@katalix.com> wrote:
>>> arun b wrote:
>>>> Thank you for the quick response...
>>>>
>>>> Ok I will have to check if the pppd is available in the remote (server
>>>> )device,
>>>> Now  the current availabel options for remote device are Alctel-ISAM
>>>> or Dslam-Dlink  where my ATM path  terminates.
>>>> let me verify this...
>>> Oh, I assumed your server was a Linux box with pppd etc. If not, we
>>> won't be able to help you with server config here.
>>>
>>>> Again to clear the  confusion....
>>>> yes with above remote devices I have tested  for PPPoE on ATM
>>>> can i call this test as PPPoEoA  !!!!!
>>> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
>>> you're trying to get PPP working over a VC-muxed ATM connection.
>>>
>>>> -Arun
>>>>
>>>>
>>>>
>>>> On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
>>>>> arun b wrote:
>>>>>> Hi,
>>>>>> Thanks for the info
>>>>>> First of all let me try to clear your confusion ..
>>>>>> 1) at the client side as i already told you its linux-box and i am
>>>>>> running pppd (2.4)
>>>>>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>>>>>
>>>>>> now this box send LCP packets 10 times and the pppd terminates. as
>>>>>> there is no responder..
>>>>>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>>>>>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>>>>>
>>>>>> so if you know about server  pls pass me the  info
>>>>> At the server
>>>>>
>>>>> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>>>>>
>>>>> Run this on the server before starting the client. Adjust IP addresses
>>>>> as required.
>>>>>
>>>>>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>>>>>> have server ......!
>>>>> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>>>>>
>>>>> What role does the Alcatel iSAM box play in your network? Is it between
>>>>> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
>>>>> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>>>>>
>>>>>> -Arun
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>> arun b wrote:
>>>>>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>>>>>> software, and operational environment) and what you're trying to do (in
>>>>>>>>> as much high-level detail as possible)?
>>>>>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>>>>>> at remote side device where ATM path terminates.
>>>>>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>>>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>>>>>> "passive" is a slightly surprising option to see on the "client" side of
>>>>>>> the connection.  Are you sure that's what you want?  And are you sure
>>>>>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>>>>>
>>>>>>> There are two broad classes of problems that show up here: either the
>>>>>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>>>>>> do you actually see when you run pppd?  Have you tried running with the
>>>>>>> "debug" option enabled?  What log messages are produced?
>>>>>>>
>>>>>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>>>>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>>>>>> be involved; possibly missing authentication or L3 address information.
>>>>>>>
>>>>>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>>>>>> 192.168.1.1:192.168.1.2 passive"
>>>>>>> It should be obvious, but the connection between these two machines
>>>>>>> _must_ be ATM, and _not_ Ethernet.
>>>>>>>
>>>>>>>> Here the server device and the configuration are unknown to me. Could
>>>>>>>> you help in choose the server device (Dslam, iSam like..), and
>>>>>>>> enabling it.
>>>>>>> If you're not the administrator for the remote end, then I have no idea
>>>>>>> how you might go about enabling it.  Won't you have to drive down to
>>>>>>> your ISP's offices and break in first?
>>>>>>>
>>>>>>> Or are you planning to set up your own PPPoA server ... ?
>>>>>>>
>>>>>>> I'm confused by what you're saying here.
>>>>>>>
>>>>>>>> James,
>>>>>>>> To your question:
>>>>>>>> I have MIPS based network device currently with me. And am exploring
>>>>>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>>>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>>>>>> port this solution to any of the h/w.
>>>>>>>> Now got stoped at PPPoA !!!
>>>>>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>>>>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>>>>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>>>>>
>>>>>>> --
>>>>>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>>>>>
>>>>> --
>
> --
> James Chapman
> Katalix Systems Ltd
> http://www.katalix.com
> Catalysts for your Embedded Linux software development
>
>

Re: PPPoA server setup how to?

[James Chapman]

arun b wrote:
> Hi,
> 
> Ans to Question: Yes my box has DSL interface. (h/w connecter is a RJ11).
> 
> Now I have 3 types of test setup to configure and verify..
> 1)DSLAM box configured to terminate a PPPoA VC-muxed connection if it
> has that capability.
> 2)Configure the DSLAM to switch the ATM (PPP) traffic from the DSL
> ingress interface to a regular ATM (fiber / coax) uplink which goes to
> a Linux server equipped with a compatible ATM NIC
> 3) Connecting similar 2 linux boxes back over the DSL interface one is
> Server(test device) other is client.
> 
> 
> Below is the test (3) result(logs) and how I executed those..
> 
> AT Server:
> =====
> #pppd plugin pppoatm.so 8.35 192.168.42.42:192.168.42.43 passive
> logfile ./log.txt
> 
> Arun: In PPP: start_link ,  FD = 7
> Using interface ppp0
> Connect: ppp0 <--> 8.35
> LCP: timeout sending Config-Requests
> 
> AT Client:
> =====
> #pppd plugin pppoatm.so 8.35 user user1 password pass  debug  logfile ./log.txt
> Arun: In PPP: start_link ,  FD = 7
> using channel 1
> Using interface ppp0
> Connect: ppp0 <--> 8.35
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
> LCP: timeout sending Config-Requests
> Connection terminated.
> Modem hangup
> 
> The conclusion is that, the two linx-boxes are not able to
> communicate. This may be due to similar NIC type ATU-R. I guess it is
> a hardware-mode.  cannot change to ATR-C ...!

Correct. Forget about connecting two regular DSL modems directly
together. It won't work.

> Next is,  I need to explore the DLSAM possibilities.. (1) & (2).  In
> point 2 you have mentioned, "Dslam ATM uplink which goes to a Linux
> server equipped with a compatible ATM NIC". You mean it is client ? if
> server , I didn't got the point...!

In this case, the DSLAM would be effectively an ATM switch, with DSL
interfaces on one side and an ATM uplink on the other. Your Linux PPP
server would connect to the ATM uplink of the DSLAM.

+------+             +---------------+                 +-------+
|      |   DSL (ATM) |vpi=a          |                 |       |
|client|-------------|vci=b          |                 |Linux  |
|      |             |               |                 |PPP    |
+------+             |    DSLAM  vpi=c   fibre? (ATM)  |server |
                     |           vci=d-----------------|       |
                     |               |                 |       |
           DSL       |               |                 +-------+
           ----------|               +------
           ----------|               |   ethernet?
           ----------|               |
                     +---------------+

client:
pppd plugin pppoatm.so a.b

server:
pppd plugin pppoatm.so c.d ip1:ip2 passive

Some DSLAMs have PPP and IP capability built-in. Not sure what yours has.

> How is the test-setup ? , what all devices does it has..?

Please read up about DSL, ATM and your DSLAM documentation. This mailing
list isn't the place for these questions.

> 
> -Arun
> 
> 
> 
> 
> 
> On Thu, Jun 3, 2010 at 1:26 AM, James Chapman <jchapman@katalix.com> wrote:
>> arun b wrote:
>>> Well my ultimate aim is to test my client (linux-box ) i need
>>> responder  i don't care what it is as long as it responds ...
>>>
>>> NOw just thought came to me that,  what if i use 2 of linux-box one as
>>> server and other as client ...
>>> i don't know how to configure VCI/VPI on my server ..
>>> thses values where 9.45  as this are confiugred in our by the admin DSLAM/ ISAM.
>> What physical interface is used on the PPPoA client?
>>
>> It sounds like your PPPoA client is a DSL modem. If not, ignore the
>> below. :-)
>>
>> If the client is a DSL modem, you would need a DSL interface on the
>> Linux server box in order to connect them directly together. But you
>> can't use a regular DSL NIC at the server - the server and client sides
>> of a DSL link aren't the same - client is ATU-R and server is ATU-C. I
>> don't know of a DSL ATU-C NIC that Linux would be able to configure. So
>> you will probably have to use a DSLAM. Your best bet then is to have
>> your DSLAM box configured to terminate a PPPoA VC-muxed connection if it
>> has that capability. If not, configure the DSLAM to switch the ATM (PPP)
>> traffic from the DSL ingress interface to a regular ATM (fibre / coax)
>> uplink which goes to a Linux server equipped with a compatible ATM NIC
>> and run pppd there as previously described. There are many variants of
>> ATM physical interface (coax, single-mode fibre, multi-mode fibre,
>> 25Mbps, 155Mbps etc), so you would need to use whatever your DSLAM boxes
>> have as their ATM uplink. In any case, you will need to configure your
>> DSLAM to match the client setup - bridged PPPoE, VC-muxed PPPoA or
>> perhaps even LLC-muxed PPPoA.
>>
>>> pls know me if it can be configured.
>>>
>>> -Arun
>>>
>>>
>>> On Wed, Jun 2, 2010 at 11:11 PM, James Chapman <jchapman@katalix.com> wrote:
>>>> arun b wrote:
>>>>> Thank you for the quick response...
>>>>>
>>>>> Ok I will have to check if the pppd is available in the remote (server
>>>>> )device,
>>>>> Now  the current availabel options for remote device are Alctel-ISAM
>>>>> or Dslam-Dlink  where my ATM path  terminates.
>>>>> let me verify this...
>>>> Oh, I assumed your server was a Linux box with pppd etc. If not, we
>>>> won't be able to help you with server config here.
>>>>
>>>>> Again to clear the  confusion....
>>>>> yes with above remote devices I have tested  for PPPoE on ATM
>>>>> can i call this test as PPPoEoA  !!!!!
>>>> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
>>>> you're trying to get PPP working over a VC-muxed ATM connection.
>>>>
>>>>> -Arun
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
>>>>>> arun b wrote:
>>>>>>> Hi,
>>>>>>> Thanks for the info
>>>>>>> First of all let me try to clear your confusion ..
>>>>>>> 1) at the client side as i already told you its linux-box and i am
>>>>>>> running pppd (2.4)
>>>>>>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>>>>>>
>>>>>>> now this box send LCP packets 10 times and the pppd terminates. as
>>>>>>> there is no responder..
>>>>>>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>>>>>>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>>>>>>
>>>>>>> so if you know about server  pls pass me the  info
>>>>>> At the server
>>>>>>
>>>>>> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>>>>>>
>>>>>> Run this on the server before starting the client. Adjust IP addresses
>>>>>> as required.
>>>>>>
>>>>>>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>>>>>>> have server ......!
>>>>>> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>>>>>>
>>>>>> What role does the Alcatel iSAM box play in your network? Is it between
>>>>>> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
>>>>>> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>>>>>>
>>>>>>> -Arun
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>>> arun b wrote:
>>>>>>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>>>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>>>>>>> software, and operational environment) and what you're trying to do (in
>>>>>>>>>> as much high-level detail as possible)?
>>>>>>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>>>>>>> at remote side device where ATM path terminates.
>>>>>>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>>>>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>>>>>>> "passive" is a slightly surprising option to see on the "client" side of
>>>>>>>> the connection.  Are you sure that's what you want?  And are you sure
>>>>>>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>>>>>>
>>>>>>>> There are two broad classes of problems that show up here: either the
>>>>>>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>>>>>>> do you actually see when you run pppd?  Have you tried running with the
>>>>>>>> "debug" option enabled?  What log messages are produced?
>>>>>>>>
>>>>>>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>>>>>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>>>>>>> be involved; possibly missing authentication or L3 address information.
>>>>>>>>
>>>>>>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>>>>>>> 192.168.1.1:192.168.1.2 passive"
>>>>>>>> It should be obvious, but the connection between these two machines
>>>>>>>> _must_ be ATM, and _not_ Ethernet.
>>>>>>>>
>>>>>>>>> Here the server device and the configuration are unknown to me. Could
>>>>>>>>> you help in choose the server device (Dslam, iSam like..), and
>>>>>>>>> enabling it.
>>>>>>>> If you're not the administrator for the remote end, then I have no idea
>>>>>>>> how you might go about enabling it.  Won't you have to drive down to
>>>>>>>> your ISP's offices and break in first?
>>>>>>>>
>>>>>>>> Or are you planning to set up your own PPPoA server ... ?
>>>>>>>>
>>>>>>>> I'm confused by what you're saying here.
>>>>>>>>
>>>>>>>>> James,
>>>>>>>>> To your question:
>>>>>>>>> I have MIPS based network device currently with me. And am exploring
>>>>>>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>>>>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>>>>>>> port this solution to any of the h/w.
>>>>>>>>> Now got stoped at PPPoA !!!
>>>>>>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>>>>>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>>>>>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>>>>>>
>>>>>>>> --
>>>>>>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>>>>>>
>>>>>> --
>> --
>> James Chapman
>> Katalix Systems Ltd
>> http://www.katalix.com
>> Catalysts for your Embedded Linux software development
>>
>>
> 


-- 
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

Re: PPPoA server setup how to?

[James Carlson]

arun b wrote:
> Hi James,
> 
> Yes I am convinced with your schismatic-presentation, now I know what
> exactly it need to run server.
> 
> And I would say,  it is not possible  for me to test PPPoA because.
> 1) As we neither have DSLAM with uplink is ATM path nor the built in
> support for PPP, rather it has only Ethernet-uplink .

I assume that's what you meant by "RJ-11" in your previous postings.

For what it's worth, RJ-11 is typically used for Ethernet, but can also
be used for DS-1 and other signals.  It's just an electromechanical
connector, and saying you have "RJ-11" doesn't tell us much about what
sort of equipment you're using.  (Other than what it looks like ...)

> 2) Also do not available of any  Linux-server which terminates the ATM-path.
> So I will have  to explore the possibility, how can I arrange this...!
> 
> So one doubt again, Could you please name the know-standard-devices
> (manufactures/makes) for Linux-server in the below diagram, which has
> support of similar server-command mentioned by you in the previous
> e-mail.

As the other James mentioned, this really isn't the right list for that
sort of question, because it's not so related to PPP, and the people you
need aren't necessarily subscribed to this list.  You may need to do
some investigation on your own.

It's unclear what hardware you need to support.  You probably need to
work that out.  Perhaps the simplest answer (to test PPPoA and ignoring
all else) would be to get two ATM NICs and connect them back-to-back; see:

http://www.linux.org/docs/ldp/howto/ATM-Linux-HOWTO/signaling.html#SIGNALING.RUNNING-TWO-ATM-NICS-BACK-TO-BACK

Or even simpler with the ATM/TCP "test" driver.  Or maybe you need to
invest in some ADSL test gear or have your system evaluated by a
commercial testing service.

An even better answer would be to scout around for an ATM or ADSL expert
to advise you.

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

Hi James,

Yes I am convinced with your schismatic-presentation, now I know what
exactly it need to run server.

And I would say,  it is not possible  for me to test PPPoA because.
1) As we neither have DSLAM with uplink is ATM path nor the built in
support for PPP, rather it has only Ethernet-uplink .
2) Also do not available of any  Linux-server which terminates the ATM-path.
So I will have  to explore the possibility, how can I arrange this...!

So one doubt again, Could you please name the know-standard-devices
(manufactures/makes) for Linux-server in the below diagram, which has
support of similar server-command mentioned by you in the previous
e-mail.

-Arun

On Thu, Jun 3, 2010 at 2:51 PM, James Chapman <jchapman@katalix.com> wrote:
> arun b wrote:
>> Hi,
>>
>> Ans to Question: Yes my box has DSL interface. (h/w connecter is a RJ11).
>>
>> Now I have 3 types of test setup to configure and verify..
>> 1)DSLAM box configured to terminate a PPPoA VC-muxed connection if it
>> has that capability.
>> 2)Configure the DSLAM to switch the ATM (PPP) traffic from the DSL
>> ingress interface to a regular ATM (fiber / coax) uplink which goes to
>> a Linux server equipped with a compatible ATM NIC
>> 3) Connecting similar 2 linux boxes back over the DSL interface one is
>> Server(test device) other is client.
>>
>>
>> Below is the test (3) result(logs) and how I executed those..
>>
>> AT Server:
>> =====
>> #pppd plugin pppoatm.so 8.35 192.168.42.42:192.168.42.43 passive
>> logfile ./log.txt
>>
>> Arun: In PPP: start_link ,  FD = 7
>> Using interface ppp0
>> Connect: ppp0 <--> 8.35
>> LCP: timeout sending Config-Requests
>>
>> AT Client:
>> =====
>> #pppd plugin pppoatm.so 8.35 user user1 password pass  debug  logfile ./log.txt
>> Arun: In PPP: start_link ,  FD = 7
>> using channel 1
>> Using interface ppp0
>> Connect: ppp0 <--> 8.35
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> sent [LCP ConfReq id=0x1 <magic 0x3dd022c9>]
>> LCP: timeout sending Config-Requests
>> Connection terminated.
>> Modem hangup
>>
>> The conclusion is that, the two linx-boxes are not able to
>> communicate. This may be due to similar NIC type ATU-R. I guess it is
>> a hardware-mode.  cannot change to ATR-C ...!
>
> Correct. Forget about connecting two regular DSL modems directly
> together. It won't work.
>
>> Next is,  I need to explore the DLSAM possibilities.. (1) & (2).  In
>> point 2 you have mentioned, "Dslam ATM uplink which goes to a Linux
>> server equipped with a compatible ATM NIC". You mean it is client ? if
>> server , I didn't got the point...!
>
> In this case, the DSLAM would be effectively an ATM switch, with DSL
> interfaces on one side and an ATM uplink on the other. Your Linux PPP
> server would connect to the ATM uplink of the DSLAM.
>
> +------+             +---------------+                 +-------+
> |      |   DSL (ATM) |vpi=a          |                 |       |
> |client|-------------|vci=b          |                 |Linux  |
> |      |             |               |                 |PPP    |
> +------+             |    DSLAM  vpi=c   fibre? (ATM)  |server |
>                     |           vci=d-----------------|       |
>                     |               |                 |       |
>           DSL       |               |                 +-------+
>           ----------|               +------
>           ----------|               |   ethernet?
>           ----------|               |
>                     +---------------+
>
> client:
> pppd plugin pppoatm.so a.b
>
> server:
> pppd plugin pppoatm.so c.d ip1:ip2 passive
>
> Some DSLAMs have PPP and IP capability built-in. Not sure what yours has.
>
>> How is the test-setup ? , what all devices does it has..?
>
> Please read up about DSL, ATM and your DSLAM documentation. This mailing
> list isn't the place for these questions.
>
>>
>> -Arun
>>
>>
>>
>>
>>
>> On Thu, Jun 3, 2010 at 1:26 AM, James Chapman <jchapman@katalix.com> wrote:
>>> arun b wrote:
>>>> Well my ultimate aim is to test my client (linux-box ) i need
>>>> responder  i don't care what it is as long as it responds ...
>>>>
>>>> NOw just thought came to me that,  what if i use 2 of linux-box one as
>>>> server and other as client ...
>>>> i don't know how to configure VCI/VPI on my server ..
>>>> thses values where 9.45  as this are confiugred in our by the admin DSLAM/ ISAM.
>>> What physical interface is used on the PPPoA client?
>>>
>>> It sounds like your PPPoA client is a DSL modem. If not, ignore the
>>> below. :-)
>>>
>>> If the client is a DSL modem, you would need a DSL interface on the
>>> Linux server box in order to connect them directly together. But you
>>> can't use a regular DSL NIC at the server - the server and client sides
>>> of a DSL link aren't the same - client is ATU-R and server is ATU-C. I
>>> don't know of a DSL ATU-C NIC that Linux would be able to configure. So
>>> you will probably have to use a DSLAM. Your best bet then is to have
>>> your DSLAM box configured to terminate a PPPoA VC-muxed connection if it
>>> has that capability. If not, configure the DSLAM to switch the ATM (PPP)
>>> traffic from the DSL ingress interface to a regular ATM (fibre / coax)
>>> uplink which goes to a Linux server equipped with a compatible ATM NIC
>>> and run pppd there as previously described. There are many variants of
>>> ATM physical interface (coax, single-mode fibre, multi-mode fibre,
>>> 25Mbps, 155Mbps etc), so you would need to use whatever your DSLAM boxes
>>> have as their ATM uplink. In any case, you will need to configure your
>>> DSLAM to match the client setup - bridged PPPoE, VC-muxed PPPoA or
>>> perhaps even LLC-muxed PPPoA.
>>>
>>>> pls know me if it can be configured.
>>>>
>>>> -Arun
>>>>
>>>>
>>>> On Wed, Jun 2, 2010 at 11:11 PM, James Chapman <jchapman@katalix.com> wrote:
>>>>> arun b wrote:
>>>>>> Thank you for the quick response...
>>>>>>
>>>>>> Ok I will have to check if the pppd is available in the remote (server
>>>>>> )device,
>>>>>> Now  the current availabel options for remote device are Alctel-ISAM
>>>>>> or Dslam-Dlink  where my ATM path  terminates.
>>>>>> let me verify this...
>>>>> Oh, I assumed your server was a Linux box with pppd etc. If not, we
>>>>> won't be able to help you with server config here.
>>>>>
>>>>>> Again to clear the  confusion....
>>>>>> yes with above remote devices I have tested  for PPPoE on ATM
>>>>>> can i call this test as PPPoEoA  !!!!!
>>>>> Perhaps you mean PPPoE over an RFC1483 bridged encap ATM link? And now
>>>>> you're trying to get PPP working over a VC-muxed ATM connection.
>>>>>
>>>>>> -Arun
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, Jun 2, 2010 at 10:24 PM, James Chapman <jchapman@katalix.com> wrote:
>>>>>>> arun b wrote:
>>>>>>>> Hi,
>>>>>>>> Thanks for the info
>>>>>>>> First of all let me try to clear your confusion ..
>>>>>>>> 1) at the client side as i already told you its linux-box and i am
>>>>>>>> running pppd (2.4)
>>>>>>>> ie. pppd plugin pppoatm.so 9.45 user xxxxxx password xxxxxx
>>>>>>>>
>>>>>>>> now this box send LCP packets 10 times and the pppd terminates. as
>>>>>>>> there is no responder..
>>>>>>>> 2) Now I need to  setup  responder (PPPoA-server i belive) my self
>>>>>>>> similar to  PPPoE-server in the case of pppoe test linuxPC.
>>>>>>>>
>>>>>>>> so if you know about server  pls pass me the  info
>>>>>>> At the server
>>>>>>>
>>>>>>> pppd plugin pppoatm.so 9.45 192.168.42.42:192.168.42.43 passive
>>>>>>>
>>>>>>> Run this on the server before starting the client. Adjust IP addresses
>>>>>>> as required.
>>>>>>>
>>>>>>>> Also we have alctel-iSAM which has only pppoa-relay and id doesnot
>>>>>>>> have server ......!
>>>>>>> What is pppoa-relay? Are you confusing PPPoE and PPPoA?
>>>>>>>
>>>>>>> What role does the Alcatel iSAM box play in your network? Is it between
>>>>>>> the Linux PPPoA client and Linux PPPoA server? If so, how does it map
>>>>>>> ingress/egress ATM VCs? Is it configured to pass the ATM traffic correctly?
>>>>>>>
>>>>>>>> -Arun
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Wed, Jun 2, 2010 at 7:56 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>>>> arun b wrote:
>>>>>>>>>> On Wed, Jun 2, 2010 at 4:27 PM, James Carlson <carlsonj@workingcode.com> wrote:
>>>>>>>>>>> But I think it's probably time to take a step back and ask the obvious
>>>>>>>>>>> question: can you tell us what you've got (in terms of hardware,
>>>>>>>>>>> software, and operational environment) and what you're trying to do (in
>>>>>>>>>>> as much high-level detail as possible)?
>>>>>>>>>> NO I am not building it for Dslam-box. well I want to run PPPoA server
>>>>>>>>>> at remote side device where ATM path terminates.
>>>>>>>>>> I am executing this is   "pppd plugin pppoatm.so 0.80
>>>>>>>>>> 192.168.1.1:192.168.1.2 passive"  on my client(linux-box).
>>>>>>>>> "passive" is a slightly surprising option to see on the "client" side of
>>>>>>>>> the connection.  Are you sure that's what you want?  And are you sure
>>>>>>>>> that 0.80 are the right VPI/VCI pair for the connection?
>>>>>>>>>
>>>>>>>>> There are two broad classes of problems that show up here: either the
>>>>>>>>> ATM link isn't working, or the PPP link on top is misconfigured.  What
>>>>>>>>> do you actually see when you run pppd?  Have you tried running with the
>>>>>>>>> "debug" option enabled?  What log messages are produced?
>>>>>>>>>
>>>>>>>>> If pppd is timing out in LCP with "too many" Configure-Request messages,
>>>>>>>>> then the likely culprit is the ATM configuration.  Otherwise, PPP might
>>>>>>>>> be involved; possibly missing authentication or L3 address information.
>>>>>>>>>
>>>>>>>>>>      |-| RJ-11 connector   "pppd plugin pppoatm.so 0.80
>>>>>>>>>> 192.168.1.1:192.168.1.2 passive"
>>>>>>>>> It should be obvious, but the connection between these two machines
>>>>>>>>> _must_ be ATM, and _not_ Ethernet.
>>>>>>>>>
>>>>>>>>>> Here the server device and the configuration are unknown to me. Could
>>>>>>>>>> you help in choose the server device (Dslam, iSam like..), and
>>>>>>>>>> enabling it.
>>>>>>>>> If you're not the administrator for the remote end, then I have no idea
>>>>>>>>> how you might go about enabling it.  Won't you have to drive down to
>>>>>>>>> your ISP's offices and break in first?
>>>>>>>>>
>>>>>>>>> Or are you planning to set up your own PPPoA server ... ?
>>>>>>>>>
>>>>>>>>> I'm confused by what you're saying here.
>>>>>>>>>
>>>>>>>>>> James,
>>>>>>>>>> To your question:
>>>>>>>>>> I have MIPS based network device currently with me. And am exploring
>>>>>>>>>> all PPPoX-Client(oe/oa/...) configuration. Where I am already able to
>>>>>>>>>> test pppoe, pppoeonATm, and wanted start on PPPoS.  - so that we can
>>>>>>>>>> port this solution to any of the h/w.
>>>>>>>>>> Now got stoped at PPPoA !!!
>>>>>>>>> Do you have an ATM link to a system that runs PPPoA?  If so, then do you
>>>>>>>>> have configuration information (particularly VPI/VCI) for that link?  Is
>>>>>>>>> it a nailed-up VPI/VCI pair or is it "dialed" using UNI signaling?
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>>>>>>>>>
>>>>>>> --
>>> --
>>> James Chapman
>>> Katalix Systems Ltd
>>> http://www.katalix.com
>>> Catalysts for your Embedded Linux software development
>>>
>>>
>>
>
>
> --
> James Chapman
> Katalix Systems Ltd
> http://www.katalix.com
> Catalysts for your Embedded Linux software development
>
>

Re: PPPoA server setup how to?

[James Carlson]

James Carlson wrote:
> arun b wrote:
>> Hi James,
>>
>> Yes I am convinced with your schismatic-presentation, now I know what
>> exactly it need to run server.
>>
>> And I would say,  it is not possible  for me to test PPPoA because.
>> 1) As we neither have DSLAM with uplink is ATM path nor the built in
>> support for PPP, rather it has only Ethernet-uplink .
> 
> I assume that's what you meant by "RJ-11" in your previous postings.
> 
> For what it's worth, RJ-11 is typically used for Ethernet, but can also
> be used for DS-1 and other signals.  It's just an electromechanical
> connector, and saying you have "RJ-11" doesn't tell us much about what
> sort of equipment you're using.  (Other than what it looks like ...)

s/RJ-11/RJ-45/g

Ugh.  Morning coffee takes too long.  :-/

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

Yes, it is a modem  device with DSL-connection. and as I mentioned
erlier, am exploring the PPPoX configuration in it.  It has
RJ11connector..
and the link you provide  is not be useful. its just a pin-connection details.
-Arun


On Thu, Jun 3, 2010 at 6:51 PM, James Carlson <carlsonj@workingcode.com> wrote:
> James Carlson wrote:
>> arun b wrote:
>>> Hi James,
>>>
>>> Yes I am convinced with your schismatic-presentation, now I know what
>>> exactly it need to run server.
>>>
>>> And I would say,  it is not possible  for me to test PPPoA because.
>>> 1) As we neither have DSLAM with uplink is ATM path nor the built in
>>> support for PPP, rather it has only Ethernet-uplink .
>>
>> I assume that's what you meant by "RJ-11" in your previous postings.
>>
>> For what it's worth, RJ-11 is typically used for Ethernet, but can also
>> be used for DS-1 and other signals.  It's just an electromechanical
>> connector, and saying you have "RJ-11" doesn't tell us much about what
>> sort of equipment you're using.  (Other than what it looks like ...)
>
> s/RJ-11/RJ-45/g
>
> Ugh.  Morning coffee takes too long.  :-/
>
> --
> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>

Re: PPPoA server setup how to?

[James Carlson]

arun b wrote:
> Yes, it is a modem  device with DSL-connection. and as I mentioned
> erlier, am exploring the PPPoX configuration in it.  It has
> RJ11connector..

OK.  It's a little unclear how that device works or what sort of access
you have to it, but I'll assume that it looks like an ATM driver to the
rest of your system.

> and the link you provide  is not be useful. its just a pin-connection details.

You had asked about other hardware you could use for testing PPPoA.

It'd be useful if you had a plain ATM NIC, as I referenced in my
previous message.  As the other James pointed out, you need a lot more
gear to make a DSL connection work, as a simple back-to-back connection
won't work with it.

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>

Re: PPPoA server setup how to?

[arun b]

Yes let me see the possiblities, However Currnelty i am parking PPPoA test.
Now I  wnated to try PPPoSerial..if any one awere  of setup please responsd.

-Arun

On Thu, Jun 3, 2010 at 7:29 PM, James Carlson <carlsonj@workingcode.com> wrote:
> arun b wrote:
>> Yes, it is a modem  device with DSL-connection. and as I mentioned
>> erlier, am exploring the PPPoX configuration in it.  It has
>> RJ11connector..
>
> OK.  It's a little unclear how that device works or what sort of access
> you have to it, but I'll assume that it looks like an ATM driver to the
> rest of your system.
>
>> and the link you provide  is not be useful. its just a pin-connection details.
>
> You had asked about other hardware you could use for testing PPPoA.
>
> It'd be useful if you had a plain ATM NIC, as I referenced in my
> previous message.  As the other James pointed out, you need a lot more
> gear to make a DSL connection work, as a simple back-to-back connection
> won't work with it.
>
> --
> James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>
>

Re: PPPoA server setup how to?

[James Carlson]

On 06/05/10 03:34, arun b wrote:
> Yes let me see the possiblities, However Currnelty i am parking PPPoA test.
> Now I  wnated to try PPPoSerial..if any one awere  of setup please responsd.

For a plain PPP connection over serial (both async and sync), all you
should really need is a proper null-modem connection.

(With async, you can get by with as few as three wires -- TXD, RXD, and
GND.  With sync, you'll likely need slightly more and will have to set
up one side to do clock generation.  But if you have the right resources
for your serial interfaces, it shouldn't be hard.)

It should work quite simply.  Did you even try it ... ?  If so, what
problems are you now facing?

-- 
James Carlson         42.703N 71.076W         <carlsonj@workingcode.com>