Kubuntu / Iptables / Windows VPN Issue
I'm having problems with my laptop connecting through my linux router to my corporate VPN.
My setup is as follows.
Cable Modem -> (eht1) Linux Router (eth3) -> SWITCH -> Rest of House.
One of the connections in the house has a WRT54G wireless router on it.
Everything works great except connecting through the linux router to the VPN.
It should be noted, I just replaced the Linux router for an older Ubuntu machine, and VPN worked fine. I'm just missing something, but I'm not sure what.
My laptop connecting wirelessly can connect to anything on the internet. However, when I try to connect to a Windows VPN server, it fails. It reaches the "Verifying Username and Password" stage and hangs.
The linux router is running Kubunu 8.04 64-Bit, running Firestarter on Iptables.
I have added this to /etc/firestarter/user-pre as indicated online:
# Forward PPTP VPN client traffic
$IPT -A FORWARD -i $IF -o $INIF -p tcp --dport 1723 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
$IPT -A FORWARD -i $IF -o $INIF -p 47 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
$IPT -A FORWARD -i $INIF -o $IF -p 47 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT