[LARTC] ISP Static IP assinging

[LARTC] ISP Static IP assinging

[Chris Bolton]

 
Hi,

Not sure if this is the right mailing list for this but its kinda on topic.
Apparently our ISP has assinged 8 static IP addresses to us, A network IP
address, a route ip address and 5 user ip addresses.  Now they supplied us
with a router with 5 ports on, each one of the ports would assign a
different static ip address but this broke sometime again and since then
we've installed a linux machine which load balances 2 adsl lines.  The
trouble is the ip address assigned to it when it connects isn't anything
like the static IP addresses they've provided.  Is there something I have to
change in order to make use of these addreses?

I'm at a total loss with this and I hope I've made myself clear.

Regards,

Chris.

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Re: [LARTC] ISP Static IP assinging

[gypsy]

Chris Bolton wrote:
> 
> Not sure if this is the right mailing list for this but its kinda on topic.
It is ADVANCED routing; you have a simple configuration issue, so I hope
you posted more than just here.

> we've installed a linux machine which load balances 2 adsl lines.  The
You left out a critical bit of info:  WHAT DISTRO?  F.E. Slackware does
this in /etc/rc.d/rc.inet1 or /etc/rc/d/rc.inet1.conf

It sure as hell is not doing load balancing if it isn't getting assigned
correct IPs.

> trouble is the ip address assigned to it when it connects isn't anything
> like the static IP addresses they've provided.  
Again, critical info missing: WHAT IP DO YOU GET?

Each Network Interface Card ("NIC" or "eth# where "#" is 0 to n) can
respond to any number of IPs.  This was called "aliasing" (a hit for
your google search) but because these are real IPs, the term alias is
wrong.  You (probably) need only 1 of the 5 IPs for each of the 2 DSLs;
each DSL should be on a different eth#.

>Is there something I have to
> change in order to make use of these addreses?
YOU assign the IPs, not Linux or the DSL device ("modem" or "router" or
whatever terminology). 

You need to read about DHCP and NAT because it is likely that the IP
assigned via DHCP begins with one of the following
10.0
169.254
172.16
192.168
which are NATted, example, internal IPs.

Sorry, but I don't have time this morning to say more.

gypsy
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FW: [LARTC] ISP Static IP assinging

[Chris Bolton]

 
Hi,

Thanks for the reply.
 
>> Not sure if this is the right mailing list for this but its kinda on
topic.
>It is ADVANCED routing; you have a simple configuration issue, so I hope
you posted more than just here.

>> we've installed a linux machine which load balances 2 adsl lines.  The
>You left out a critical bit of info:  WHAT DISTRO?  F.E. Slackware does
this in /etc/rc.d/rc.inet1 or /etc/rc/d/rc.inet1.conf
Its red hat 9

>It sure as hell is not doing load balancing if it isn't getting assigned
correct IPs.

I'm using a program called netsplitter from www.hostname.org seems rather
crude but does the job.

>> trouble is the ip address assigned to it when it connects isn't 
>> anything like the static IP addresses they've provided.
Again, critical info missing: WHAT IP DO YOU GET?

The IPs I get seems to be dynamically assigned from the ISP, not different
every time but do vary from week to week.

>>Each Network Interface Card ("NIC" or "eth# where "#" is 0 to n) can
>>respond to any number of IPs.  This was called "aliasing" (a hit for
>>your google search) but because these are real IPs, the term alias is
>>wrong.  You (probably) need only 1 of the 5 IPs for each of the 2 DSLs;
>>each DSL should be on a different eth#.

Probably should of mentioned that I'm using 2 speedtouch usb modems which as
you could probably guess once connected are ppp0 and ppp1.

>Is there something I have to
> change in order to make use of these addreses?
>>YOU assign the IPs, not Linux or the DSL device ("modem" or "router" or
>>whatever terminology). 

>You need to read about DHCP and NAT because it is likely that the IP
>assigned via DHCP begins with one of the following
>10.0
>169.254
>172.16
>192.168
>which are NATted, example, internal IPs.

>Sorry, but I don't have time this morning to say more.
Don't be sorry you responded and that was enough.

Anyway I'm going to do a bit of googling on aliasing and see what I can dig
up.

Cheers.


Chris

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