[Bridge] Bridge Problem: Ping works, nothing else does...
Bainbridge, David D
David.D.Bainbridge at team.telstra.com
Tue Apr 10 16:37:49 PDT 2007
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.....
From: Stephen Hemminger [mailto:shemminger at linux-foundation.org]
Sent: Wednesday, 11 April 2007 3:49 AM
To: Bainbridge, David D
Cc: bridge at lists.linux-foundation.org
Subject: Re: [Bridge] Bridge Problem: Ping works, nothing else does...
On Tue, 10 Apr 2007 14:38:46 +1000
"Bainbridge, David D" <David.D.Bainbridge at team.telstra.com> wrote:
> 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
> 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
> 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
Stephen Hemminger <shemminger at linux-foundation.org>
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