Hi bridge list: Bart de Schuymer suggested that this question might be better placed on this list rather than in the ebtables area. So here it is : ================================================================Hi listers: I am a relative Penquin Newcomer, and I am (therefore?) encountering problems trying to setup a simple bridge/firewall between two vlans sharing portions of the same subnet, x.y.z.0/24. The VLANs are created and managed by a campus wide arrangement of Nortel Baystack 450's. The bridge machine has a "stock kernel" 2.6.0-test9, and two 3Com 905B nics enslaved to a single bridge. There are no rules installed yet, in either ip- or ebtables. The current network is on Port 1(eth0), and a portion is moved to the NewVLAN on Port 2 (eth1) Extent Network Vlan --> Port1(eth0)[BridgeMachine]Port2(eth1) --> NewVLAN network Problem: The firewalled side of the bridge (Port2, eth1) consistently moves from "listening state" to "blocking state" and stays there. No connections can be made across the bridge. However, This seems to occur only when the nic is sharing an IRQ. If the IRQ question is circumvented by fiddling with startup, a pair of unique IRQs can be obtained for the nics. Then both Ports of the Bridge enter Forwarding state. But even in this case, when the bridge appears to be forwarding traffic to both nics, (as seen by tcpdump), pings fail to reach across the bridge. Pings succeed when both sending and receiving hosts are on the same side of bridge. A SHOWMACs command shows primarily MACs on the original network side (Port 1). Only the bridge MAC for eth1 and the MAC of the 450 Switch show in the list,. None of the MACS for the hosts moved into NewVLAN show up at all. What do I need to successfully move traffic across the bridge? Thanks in advance Patrick Burr systems Administrator 604 822-8932 Woodward IRC, Room 109 College of Health Disciplines UBC Don't send me any attachment in Micro$oft (.DOC, .PPT) format please Read <http://www.fsf.org/philosophy/no-word-attachments.html> Preferable attachments: .PDF, .HTML, .TXT Thanx for adding this text to Your signature