I'm trying to use NoCatSplash to create a captive portal on a bridge machine that has an IP address assigned to the bridge device. NoCatSplash uses iptables and it seems that this is the beginning of my problems...i guess I need to be using ebtables instead of iptables but i'm not sure... I've setup NoCatSplash before and found it rather easy to get working but am having a hard time getting it to work on the bridge. The idea is to be able to very easily insert a captive portal at a bottleneck point in a given network without reconfiguring all of the routers and access points already installed. My bridge setup is as follows: ifconfig eth1 0.0.0.0 ifconfig eth2 0.0.0.0 brctl addbr br0 brctl addif br0 eth1 brctl addif br0 eth2 ifconfig eth1 up ifconfig eth2 up ifconfig br0 10.0.0.99 netmask 255.255.255.0 up route add default gw 10.0.0.1 I've configured NoCatSplash to use br0 as the interface and 10.0.0.99 as the ip address but of course its not working. The firewall is setup incorrectly and i'm not sure what part of the firewall is incorrect as i'm not sure where the bridging logic and the iptables logic interact. I'm not sure what i'm missing but i've hit the limits of my knowledge...can someone help me with this? Thanks in advance! dennis