I am trying to built a simple bridge but it doesn't seem to work.
I am using BRCFG from shadow.cabi.net (precompiled version because
it doesn't compile and the fixes are beyond me) and 2.1.130.
Both NIC's are NE2000 clones. After enabling bridging (brcfg -ena) and
making sure both cards are in promisc mode (and have arp set as per Bridge
HOWTO) I can see the packets crossing the bridge if I snoop with tcpdump,
but the machine on the other end doesn't seem to bother to reply.
Without bridge: Livingston ---- HUB -- Bunch of servers
with bridge: Livingston --- eth1 - eth0 --- HUB -- Bunch of servers
Without the bridge, everything works fine. With the bridge I can see ICMP
echo requests from a server getting on eth1 as well as eth0, but the
livingston doesn't send any echo reply (Or at least my tcpdump on the bridging
Linux machine doesn't see it)
Does anyone know how I can further debug this? I don't undestand the -deb
output. I also see a lot of warnings about (out of my memory) discarded
messages(?)
Paul
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