[pptp-server] cannot connect from remote network

[Nico De Ranter]

Howdy,

this issue seems to have risen a few times but I never saw an answer.

I have the following problem:

I set up a PPTP server on a Linux box. The clients are running Linux,
Win95/Win98 or WinNT.  The network setup looks kindof like the following:

                                       |client 1|
                                            |
      -----net A--------|FW|-------net B----------
         |                               |
   |pptp server|                      |cisco|
                                         |
                                         | 
                                    pstn or isdn
                                         |
                                         |
                                      |client 2|

Client 1 connects to a virtual ip-address on net B which is
converted and forwarded (NAT) by the firewall to the pptp server.  This
setup works perfectly.

Now I take exactly the same client 1 and have it dialin to the
cisco with exactly the same configuration as client 2.  The dialin setup is
ok (I can surf the net and do whatever I want). However I can only connect
to the pptp server once.  If I disconnect and reconnect again the logon hangs
during ppp negotiation.  If I dialin again with client 2 and get another 
ip-address assigned by the Cisco, it again works only once.
If I reboot client 2 to another OS and connect again with the same ip-address,
it will have the same problem.  After some time I'm able to logon again.
Note: the pstn and isdn dialins use different cisco routers but they both have
the problem.

Any idea what might be wrong.

Nico



-- 
--------------------------------------------------------
How do you tell when you run out of invisible ink?
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Nico De Ranter
Sony Service Center (SUPC-E/NSSE)
Sint Stevens Woluwestraat 55 (Rue de Woluwe-Saint-Etienne)
1130 Brussel (Bruxelles), Belgium, Europe, Earth
Telephone: +32 2 724 86 41 Telefax: +32 2 726 26 86
e-mail: nico.deranter at sonycom.com