From: f.zschocke@edv-consulting-berlin.de   
      
   High NG   
      
   I hop I'm in the right group. I try to establish a vpn connection to a   
   windows 2000 server with pptp ( high encryption). From the router ( with   
   fixed ip ) i have a port forwarding of 1723 and GRE to a ipcop and form the   
   ipcop i have a forwarding of these protocols to the server.   
   Everything works fine for a short time and than  - zap the connection is   
   disconnected. I can reconnect and work further for 3 minutes. I have   
   searched a lot in the last two days but found no solution.   
   I have attached the protocol ( only the last lines ) of the providers packet   
   sniffer.   
   Can you tell me what is going wrong here ? The log on the server says that   
   it disconnects for user demand.   
   What is port 2853 ?   
      
   Thank you for your time and help   
   Florian   
      
   Intergface explanation:   
      
   192.168.0.204 (ipcop extern)   
   213.23.130.186 (me from the internet )   
      
      
   Log   
   10/13/2005-13:59:41:IP-FILTER: I:PROTO 47 (???) pkt from 192.168.0.204   
      
   10/13/2005-13:59:41:IP-FILTER: to 213.23.130.186 accepted   
      
   10/13/2005-13:59:41:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:41:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:44:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:44:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:44:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:44:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:45:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:45:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:46:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:46:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:46:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:46:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:48:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:48:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-13:59:52:IP-FILTER: O:PROTO 47 (???) pkt from 213.23.130.186   
      
   10/13/2005-13:59:52:IP-FILTER: to 192.168.0.204 accepted   
      
   10/13/2005-14:00:00:IP-FILTER: O:PROTO 6 (TCP) pkt from   
      
   213.23.130.186/2853   
      
   10/13/2005-14:00:00:IP-FILTER: to 192.168.0.204/1723 accepted, ACK   
      
   Flag   
      
   10/13/2005-14:00:00:IP-FILTER: I:PROTO 6 (TCP) pkt from   
      
   192.168.0.204/1723   
      
   10/13/2005-14:00:00:IP-FILTER: to 213.23.130.186/2853 accepted, No   
      
   SYN/ACK   
      
   Flags, RST Flag   
      
   --- SoupGate-Win32 v1.05   
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