>>It makes sense though that you don't get that in FORWARD since the routing decision has not yet been made. Sorry, that's not true, routing decision HAS been made which is why it's FORWARDing onto another interface. But remember that MAC addresses are visible only as they come off the wire.. that's what I've found.. so INPUT and PREROUTING see it but once they are in, the macs are dropped off into limbo... Thanks, ____________________________________________ George Vieira Systems Manager georgev@xxxxxxxxxxxxxxxxxxxxxx Citadel Computer Systems Pty Ltd http://www.citadelcomputer.com.au Phone : +61 2 9955 2644 HelpDesk: +61 2 9955 2698