Hi, I'm running Redhat 7.0 with the 2.4.16 kernel and netfilter patch. Currently this bridge also routes since it has 2 IP's, and the routes manipulated. I also would like to setup a DHCP server on this bridge/router. Eth0 is the backbone connection and eth1 is the LAN connection.
My question is how I can block dhcp port 67:68 UDP traffic from going on the backbone connection (eth0). In the 2.2.19 kernel you can filter traffic based on the interface, but with the netfilter patch it seems that all traffic now shows up on the bridge interface (br0). Because of this you cannot filter dhcp; otherwise it stops traffic for both sides of the bridge. EX of what I tried: Iptables -A INPUT -p udp -i eth0 --sport 67:68 -j DROP EX of what works but blocks all traffic: Iptables -A INPUT -p udp -i br0 --sport 67:68 -j DROP I hope this makes sense, TIA Vincent Tocco EMU technical support _______________________________________________ Bridge mailing list [EMAIL PROTECTED] http://www.math.leidenuniv.nl/mailman/listinfo/bridge
