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

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

JD

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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 <[email protected]>
To: <[email protected]>
Sent: Thursday, April 18, 2002 5:35 PM
Subject: vpn connection problem

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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.

Regards Richard
[email protected]
http://people.zeelandnet.nl/pa3gcu/

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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.

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