Hello World: This is the scenario: MY.DSK.BOX (eth0) <=> (eth?) MY.BR0.BOX (eth?) <=> MY.TST.BOX (eth0) I want to use iptables to stop unwanted traffic to traverse MY.BR0.BOX. MY.DSK.BOX and MY.TST.BOX are in the same subnet. The IP/subnet of MY.BR0.BOX is irrelevant because MY.BR0.BOX is invisible to the 'functional' network. Yes, this WORKS (it is working now), and I can not make MY.BR0.BOX visible to the network because of more reasons that I have time to write about. WHAT I WANT: GOOD packets are allowed to traverse MY.BR0.BOX back and forth without further restrictions. BAD packets to/from MY.DSK.BOX to/from MY.TST.BOX are dropped at MY.BR0.BOX So far I have been able to drop the traffic in only one direction, but not both... :( Bridge definition below: Thanks! ET # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 # iface eth0 inet dhcp iface eth0 inet manual # The primary network interface allow-hotplug eth1 # iface eth1 inet dhcp iface eth1 inet manual # Bridge setup auto br0 iface br0 inet dhcp bridge_ports eth0 eth1 --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: http://lists.phxlinux.org/mailman/listinfo/plug-discuss