vpn connection problem

vpn connection problem

[Hanumanth Rao]

Hi Gurus,

I have a situation for which i want a solution, hope somebody out there
has got a solution.

I have win98 and win2k professional vpn clients to be connected through
a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
internet.  Im not able to get connected to the vpn server please
suggest.

Scenario

Win98 & Win2K Professional (vpn clients)
                   |
                  V
Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
enabled)
                   |
                  V
VPN Server (on Internet with real ip)


Please let me know if anything to be done on the linux gateway.

Regards
Rao

vpn connection problem

[Hanumanth Rao]

Hi Gurus,

I have a situation for which i want a solution, hope somebody out there
has got a solution.

I have win98 and win2k professional vpn clients to be connected through
a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
internet.  Im not able to get connected to the vpn server please
suggest.

Scenario

Win98 & Win2K Professional (vpn clients)
                   |
                  V
Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
enabled)
                   |
                  V
VPN Server (on Internet with real ip)


Please let me know if anything to be done on the linux gateway.

Regards
Rao

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Re: vpn connection problem

[JD]

the vpn server has a true external IP? and you can access the rest of the
internet from it?

JD

On Thu, 18 Apr 2002, Hanumanth Rao wrote:

> Hi Gurus,
>
> I have a situation for which i want a solution, hope somebody out there
> has got a solution.
>
> I have win98 and win2k professional vpn clients to be connected through
> a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> internet.  Im not able to get connected to the vpn server please
> suggest.
>
> Scenario
>
> Win98 & Win2K Professional (vpn clients)
>                    |
>                   V
> Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> enabled)
>                    |
>                   V
> VPN Server (on Internet with real ip)
>
>
> Please let me know if anything to be done on the linux gateway.
>
> Regards
> Rao
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.linux-learn.org/faqs
>

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Re: vpn connection problem

[Tom Beer]

Hi,

this is the newbie list, not the guru list :-)

Can you provide a _little_ more information than
I have a M$ and a M$ which I want to connect to a
Linux gateway. What is your exact problem?
Have you log files. What have you tryed, what
failed. What's your assessment of the situation?

Greets Tom

----- Original Message -----
From: Hanumanth Rao <ahrao@yukthi.com>
To: <linux-newbie@vger.kernel.org>
Sent: Thursday, April 18, 2002 5:35 PM
Subject: vpn connection problem


> Hi Gurus,
>
> I have a situation for which i want a solution, hope somebody out there
> has got a solution.
>
> I have win98 and win2k professional vpn clients to be connected through
> a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> internet.  Im not able to get connected to the vpn server please
> suggest.
>
> Scenario
>
> Win98 & Win2K Professional (vpn clients)
>                    |
>                   V
> Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> enabled)
>                    |
>                   V
> VPN Server (on Internet with real ip)
>
>
> Please let me know if anything to be done on the linux gateway.
>
> Regards
> Rao
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.linux-learn.org/faqs
>

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Re: vpn connection problem

[Paul Furness]

Hmm. Can you connect to the gateway from the windows machines (does ping
or telnet work)? If you can't reach the gateway, then obviously the
problem is with the windows configuration or the local network.

From the gateway, can you see the vpn server (ping / telnet etc)? If
not, then check the connections and also the routing table on the
gateway (if it defaults to the wrong interface, you might not get a
connection).

If the windows machines _can_ see the gateway and the gateawy _can_ see
the vpn server, but the windows machines _can't_ see the vpon server,
then it could be that you do not have IP forwarding working properly on
the gateway.

Good places to look for extra information are the HOWTO's on networking,
Firewalling, Masquerading and IPChains.

Paul.

On Thu, 2002-04-18 at 16:35, Hanumanth Rao wrote:
> Hi Gurus,
> 
> I have a situation for which i want a solution, hope somebody out there
> has got a solution.
> 
> I have win98 and win2k professional vpn clients to be connected through
> a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> internet.  Im not able to get connected to the vpn server please
> suggest.
> 
> Scenario
> 
> Win98 & Win2K Professional (vpn clients)
>                    |
>                   V
> Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> enabled)
>                    |
>                   V
> VPN Server (on Internet with real ip)
> 
> 
> Please let me know if anything to be done on the linux gateway.
> 
> Regards
> Rao
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.linux-learn.org/faqs
> 


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Re: vpn connection problem

[urgrue]

many vpn software simply doesnt work through masquerading, no matter 
what you do.
id suggest you try some other vpn software.
or, why not just have redhat connect to the vpn server and route the 
two windows' through there? why bother with two vpn tunnels when you 
only need one?



> Hi Gurus,
> 
> I have a situation for which i want a solution, hope somebody out
> there
> has got a solution.
> 
> I have win98 and win2k professional vpn clients to be connected
> through
> a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> internet.  Im not able to get connected to the vpn server please
> suggest.
> 
> Scenario
> 
> Win98 & Win2K Professional (vpn clients)
>                    |
>                   V
> Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> enabled)
>                    |
>                   V
> VPN Server (on Internet with real ip)
> 
> 
> Please let me know if anything to be done on the linux gateway.
> 
> Regards
> Rao
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-admin"
> in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

Re: vpn connection problem

[Ray Olszewski]

I am not sure is there is enough VPN expertise on this list to help you. You
might do better reading the FAQ materials at, say, the LEAF project
(leaf.sourceforge.net). Though they would be oriented to LEAF, not Red Hat
... for much of this stuff, Linux is Linux, and you should be able to get
some help that way.

To have a chance of getting more help here, you need to tell us:

1. What sort of VPN you are running (there are several possibilities, and
some have serious problems with NAT). There is at least one proprietary VPN
package -- its name slips my mind -- that I believe cannot be made to run
through NAT.

2. How you have tried to set it up (in particular, what port forwarding you
have done, if any).

3. How it fails.

You should also confirm that the clients in question can reach the outside
VPN server in a normal fashion ... say with pings and ssh connections. If
they cannot, then your problem is in routing (or in DNS), not in the VPN
itself, and you will need to fix that first. And that the VPN server is set
up correctly (can it make VPN connections when no Linux rotuer is involved?).

Other basics to include (from the Red Hat router) are

        what kernel ("uname -a")
        what interfaces ("ifconfig -a")
        what firewalling (probably "ipchains -nvL", but this
                depends on which kernel you are using)
        what port forwarding (I forget the command for this; check
                the man page for ipmasqadm)
        what routing table ("netstat -nr" is one way to display this)

PS. I saw your other, "register" message. I assume you are trying to join
the list. That's not hhow to do it. Send a message to
        majordomo@vger.kernel.org
with this as its body
        subscribe linux-newbie ahrao@yukthi.com
        

At 09:05 PM 4/18/02 +0530, Hanumanth Rao wrote:
>Hi Gurus,
>
>I have a situation for which i want a solution, hope somebody out there
>has got a solution.
>
>I have win98 and win2k professional vpn clients to be connected through
>a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
>internet.  Im not able to get connected to the vpn server please
>suggest.
>
>Scenario
>
>Win98 & Win2K Professional (vpn clients)
>                   |
>                  V
>Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
>enabled)
>                   |
>                  V
>VPN Server (on Internet with real ip)
>
>
>Please let me know if anything to be done on the linux gateway.
>
>Regards
>Rao



--
------------------------------------"Never tell me the odds!"---
Ray Olszewski                                        -- Han Solo
Palo Alto, CA           	 	         ray@comarre.com        
----------------------------------------------------------------

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Re: vpn connection problem

[Murat Koc]

[-- Attachment #1: Type: text/plain, Size: 836 bytes --]


> Hi Gurus,

Hi,

> 
> I have a situation for which i want a solution, hope somebody out there
> has got a solution.
> 
> I have win98 and win2k professional vpn clients to be connected through
> a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> internet.  Im not able to get connected to the vpn server please
> suggest.
> 
> Scenario
> 
> Win98 & Win2K Professional (vpn clients)
>                    |
>                   V
> Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> enabled)
>                    |
>                   V
> VPN Server (on Internet with real ip)
> 
> 
> Please let me know if anything to be done on the linux gateway.

If you use pptp try to look at 

http://www.impsec.org/linux/masquerade/ip_masq_vpn.html


							MURAT KOC


[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 874 bytes --]

Re: vpn connection problem

[Milan P. Stanic]

On Thu, Apr 18, 2002 at 09:03:25PM +0530, Hanumanth Rao wrote:
> I have a situation for which i want a solution, hope somebody out there
> has got a solution.
> 
> I have win98 and win2k professional vpn clients to be connected through
                         ^^^^^^^^^^^^
                         Ridiculous ;-)

> a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> internet.  Im not able to get connected to the vpn server please
> suggest.
> 
> Scenario
> 
> Win98 & Win2K Professional (vpn clients)
>                    |
>                   V
> Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> enabled)
>                    |
> VPN Server (on Internet with real ip)

Can you describe VPN server, i.e. what VPN software it runs? Or if You
want to install it I think you can do that with freeswan
(www.freeswan.org).

Why do you have MASQ enabled on the gateway?

Milan

Re: vpn connection problem

[Richard Adams]

On Thursday 18 April 2002 15:43, Tom Beer wrote:
> Hi,
>
> this is the newbie list, not the guru list :-)

Sure is "The newbie list", however this list has a reputation of having some 
more experienced "LINUX" users floating around with (me for one) more than 10 
years of linux usage, however i cannot claim to be a guru, just a more 
advanced linux user willing to answer newbie questions when and if possable.

As a matter of fact this VPN question is of great interest to me as i for one 
tryed setting up a windows machine behind a linux firewall to a vpn server 
behind another linux firewall, the problems i encored were many, mostly due 
to cooperate firewalls.
I gave up considering i do not like the M$ way of life, i convinced my boss 
to do things in other ways, with windows XP thats easy, remote desktop, it is 
much simpler to get throb' a decent linux firewall with a few simple firewall 
commands added to the linux machine(s).

If i can be of help this half guru will comment on anything i see that rings 
bells with me, i can even try out ones configuration as my situation here 
sounds like/similar to the question askers.
Other than that i promise nothing.

>
> Can you provide a _little_ more information than
> I have a M$ and a M$ which I want to connect to a
> Linux gateway. What is your exact problem?
> Have you log files. What have you tryed, what
> failed. What's your assessment of the situation?
>
> Greets Tom
>
> ----- Original Message -----
> From: Hanumanth Rao <ahrao@yukthi.com>
> To: <linux-newbie@vger.kernel.org>
> Sent: Thursday, April 18, 2002 5:35 PM
> Subject: vpn connection problem
>
> > Hi Gurus,
> >
> > I have a situation for which i want a solution, hope somebody out there
> > has got a solution.
> >
> > I have win98 and win2k professional vpn clients to be connected through
> > a linux 6.1 box (gateway with ISDN connection) to a vpn server on the
> > internet.  Im not able to get connected to the vpn server please
> > suggest.
> >
> > Scenario
> >
> > Win98 & Win2K Professional (vpn clients)
> >
> >                   V
> > Red Hat Linux 6.1 (Gateway, ISDN Connection,  MASQ enabled, IP_Forward
> > enabled)
> >
> >                   V
> > VPN Server (on Internet with real ip)
> >
> >
> > Please let me know if anything to be done on the linux gateway.
> >
> > Regards
> > Rao

-- 
Regards Richard
pa3gcu@zeelandnet.nl
http://people.zeelandnet.nl/pa3gcu/

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