How to configure iptables to allow vpn passthrough

Paul Howarth paul at
Wed Apr 5 09:59:12 UTC 2006

Dan Track wrote:
> On 4/5/06, Paul Howarth <paul at> wrote:
>> 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.
> Hi
> Thanks for the advice. I assume that you create the vpn tunnel at the
> router with your firewall, what I'd like to do is create a tunnel from
> a windows xp workstation inside the network. Is that possible, or is
> thei a wishlist?

I'm running shorewall on my FC5 linux router box, and openvpn on my 
local LAN. The vpn traffic goes through the router and works fine. Works 
for the Windows openvpn client too.


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