Hi all you gurues;
We have a problem getting access to a VPN server (XPs build in simple VPN server) from a wireless hotspot.
A summay looks like this.
- We are using XPs biuld in VPN client which use pptp.
- I can login on the server from a fixed ADSL connecting.
- From the hotspot the following conversion is seen
- Connecting to server - Checking username and password - After some time: Error 721 The server did not answer...
- From a Ethereal dump I can see:
- The PC is talking to the server with pptp/ppp - A some point it starts o use a GRE tunnel - From that point is seems that the server cannot communicate with the PC anymore. The PC send several commands: LC Configuration request (7-8 times) to the server - but never get an answer and drops the connecting after a while.
- We are doing a NAT actually PAT translation on a cisco router in the network and have an idea that this could be the problem, but we have set it up according to Ciscos recommendation for pptp.
Some lines from the router configuration:
access-list 103 deny udp any any eq 135
access-list 103 deny tcp any any eq 135
access-list 103 deny udp any any eq netbios-ss
access-list 103 deny tcp any any eq 139
access-list 103 deny udp any any eq 445
access-list 103 deny tcp any any eq 445
access-list 103 permit ip any any
access-list 103 permit gre any any
- Have you seen anything linke this before? Or du you have something we have to look into?
- If someone solves the problem he/she will get a special present from Denmark.
Greetings from Denmark
Lasse