Here's a good place to start: http://bridge.sourceforge.net/ -----Original Message----- From: netfilter-admin@xxxxxxxxxxxxxxxxxxx [mailto:netfilter-admin@xxxxxxxxxxxxxxxxxxx]On Behalf Of Herman Sent: Thursday, October 16, 2003 8:15 PM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Bridge question Hi everybody, This question is not about iptables, but it is closely related, so somebody might know the answer: I am trying to construct a bridge, to filter 802.1q tags and protect a legacy version 2.2 kernel server, while preserving port to port security on the LAN, using the VLAN module. Can anybody refer me to some documentation on filtering on a bridge for the 2.4 kernel? Regards, -- Herman