Thanks Stephen, I tried it with the bridge having an IP address and without. With a little help from one of our IT guys, we deleted all entries in the iptables and it now works! Not sure why layer 3 filtering should have an effect on layer 2 forwarding rules but anyway..... Regards David Bainbridge -----Original Message----- From: Stephen Hemminger [mailto:shemminger@xxxxxxxxxxxxxxxxxxxx] Sent: Wednesday, 11 April 2007 3:49 AM To: Bainbridge, David D Cc: bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx Subject: Re: Bridge Problem: Ping works, nothing else does... On Tue, 10 Apr 2007 14:38:46 +1000 "Bainbridge, David D" <David.D.Bainbridge@xxxxxxxxxxxxxxxx> wrote: > Hi, > I'm a newbie to linux to an extent but have a need to set up a linux > bridge to do some paclet loss testing using netem. I have a PC with > two NIC cards and Fedora 6. I have created the bridge using the > following commands > > #brctl addbr mybridge > #brctl addif mybridge eth0 > #brctl addif mybridge eth1 > #brctl mybridge up > I assume you setup IP address for mybridge: ifconfig mybridge 192.168.0.X Check status with: brctl showstp mybridge > Physically I have two IP devices with static IP addresses connected to > the two NIC cards via cross over cables. I have tested the NIC cards > in a non bridged mode and they work fine as normal NICs. In bridged > mode I can ping the other IP device. The IP devices are actually > realtime audio over IP codec devices and they stream using RTP on UDP port 5000. > If I connect the cross over cable directly between the two codec > devices the audio is transferred fine, if I put the linux bridge > between them I get nothing but I can still ping..... > > A brctl showstp shows the eth0 and eth1 are in forwarding status but > nothing is happenig. Can anyone help. Both Eth1 and 0 are set to Ip > address of 0.0.0.0 > > Thanks > > > Regards > David Bainbridge What hardware is being used for eth0 and eth1, I assume both are normal ether devices. They need to support source address spoofing, and promiscuous mode. -- Stephen Hemminger <shemminger@xxxxxxxxxxxxxxxxxxxx> _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
