Topic: If I have a firewall making NAT?

Hello, I have a firewall making NAT for my local network, I have eth0 to UPLINK and eth1 for LAN, eth1 have configuration and works fine as Gateway, DNS-server, proxy-server, and dhcp-server.

Chillispot needs take control over eth1 and needs bring up tun0, is possible bring up tun0 with my eth1 configuration, own-firewall rules and services?

Re: If I have a firewall making NAT?

Im not sure why you want to do that?

This howto adds firewall rules to "tun"
http://www.pervasive-network.org/SPIP/Installation-de-chillispot-sur-une

But i don't think you need to, Use this howto
https://help.ubuntu.com/community/WifiDocs/ChillispotHotspot/7.10