On Sun, Mar 20, 2005 at 08:46:47PM -0800, Derek Fedel wrote: > The NIC connected to the switch is a Realtek 8100 series that I > believe should support the extra MTU size (8139too driver) It will, but I would suggest getting an Intel card instead, they don't cost a lot and are higher quality cards. Use the e100 or e1000 driver in the kernel though, not the old eepro100 driver. > Its odd, I set up the vlans I want on the switch, set up the > trunking on the port that the firewall is connected to, and vconfig > the vlans to the interface on the firewall, but once I bring the > vlan'd interface up, it will transmit packets, but not actually > receive anything except for what tcpdump identifies as "Unknown IPX > packets". hooray. Anyone have any ideas? I'll be glad to supply > more information if need be. I suspect an MTU issue, but I'm not > too sure. Is trunking specifically set to use dot1q? If not, I believe Cisco prefers their own trunking protocol ISL, which is incompatible with 802.1Q. //Peter