I used cent OS 5.2 as my Linux gatway that has iptables installed and there are many clients access though this server in oder to access Internet connection.
Here is how it connected
Cleints ==> Gateway==> Internet
My problems is when first cleint access to vpn server on the Internet. It worked fine
but when second client access to same or another VPN server? It didn't work.
My Linuxbox is runing on centos 5.2 kernel 2.6.18-92.el5, iptables 1.4.3
here is my masquarade nat rule
-A POSTROUTING -o ppp0 -j MASQUERADE
Any Idea please suggestion me? Thank