What VPN software are you using? Windows PPTP uses 1723 TCP and IP protocol 47 (GRE). What is the termination point of the tunnel? A Microsoft Server? If the tunnel transverses the router and you are not using port translation, you probably dont need any config changes on the router. If you are using port translation, You need to get a static IP for your translation.
Hi, thanks for your response. Client is using Windows PPTP. Termination point is a Microsoft Server. (There may be a firewall involved.)
Not using port translation as such. Have IP nat inside on E0 and IP nat outside on ATM0.1.
Have a "ip nat inside source list 101 interface ATM0.1 overload" statement and access list 101 is "access-list 101 permit ip 192.168.1.0 0.0.0.255 any". IP address of server is 192.168.1.3 and E0 is 192.168.1.1.
Without an "inside source static tcp 192.168.1.3 1723 interface ATM0.1 1723" it doesn't map at all. With it, it does and if I do a telnet 1723 I get a connection of some sort to something, but then it times out.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...