How to configure iptables to allow vpn passthrough

[Paul Howarth]

Dan Track wrote:
> I'd like to connect to my work vpn, how can I configure iptables to
> allow vpn passthrough. I have linksys wrt54g wireless router that can
> do it, but I can't manage it through my linux firewall, can someone
> please suggest a way out of this.

I use shorewall to build the firewall for my router rather than the 
stock Fedora iptables. Shorewall has configuration options for a few 
different types of "tunnel" applications such as pptp and openvpn style 
VPNs. I use openvpn with shorewall and it works perfectly. Highly 
recommended.

Paul.