On Thu, March 2, 2006 11:46, Buddy wu wrote: > I DON'T mean there is a VPN serving making from linux. > The fact is that: > I set up a VPN server using windows server(IP:192.168.1.1) and it > is behind a Linux server which is using iptables for nat > iptables -A PREROUTING -d 218.0.0.0 -j DNAT --to 192.168.1.1 > > but I can't establish the VPN connection from out(etc IP address is > 218.10.0.1, I have tested that I can connect to other service such as > web(port 80). How can I establish the VPN connection ? Is there need > some setting in IPTABLES? If it's Windows then I suspect it's a PPTP server. For this to work you have to forward both 1723/tcp and the gre (47) protocol. Also, you need the pptp conntrack/nat modules for which you may have to recompile the kernel and iptables. Gr, Rob
