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Re: [Openvpn-users] openVPN through Cisco firewall!

  • Subject: Re: [Openvpn-users] openVPN through Cisco firewall!
  • From: "Peter Njiiri" <pnjiiri@xxxxxxxxx>
  • Date: Thu, 05 Jul 2007 19:25:34 +0400

Thanks for the feedback. I need to bypass the firewall as it's blocking the traffic (I think) (as no packets are received on the tun interface of the remote server when I ping the from If I try to force the internal traffic by adding a route for the internal network, i.e through the tunnel, ping doesn't work. Yes the tunnel is up with no errors,Initialization Sequence is done. Yes from, I can ping successfully to (tun interface of the remote server) from and vice versa (when I ping from As said, I want to communicate from the to the remote server ( without passing through NAT (firewall) because the software I'm installing on the remote server requires no NAT communication.Is there a way that this can be done??? Which IP should I assign the software so that it communicates through the tunnel, the physical nic or the virtual tun one???Maybe it's the concept I'm missing??
Kind Regards

>>> Erich Titl <erich.titl@xxxxxxxx> 05/07/2007 18:03 >>>

Peter Njiiri wrote:

> The application to be installed on the client server (
> requires that no NAT-ing be done thus need the tunnel to work to prevent
> any NAT by the PIX. Is there a route I can add to bypass the firewall.

What for?

> Can an alternative route or iptables rule be added to force all data
> from to there something I've
> missed??Feedback will be appreciated. Thanks

You did not tell us if the tunnel actually comes up. Once the tunnel is
established you can contact the client through its _tunnel_ interface.