[Xen-users] Routing bug with network-bridge?

[PinkFreud <pf-xen-users@xxxxxxxxxxxx>]

I've been beating my head against a wall for the past few hours trying
to resolve this.

The box I'm setting up Xen on is also the router for my network.  It
has two nics - eth0 (to the 'net), and eth1 (to my lan).  I'm using
bridging on the lan interface for Xen.

When the bridge comes up, routing for the other systems on my lan goes
to hell.

According to iptables, any packets coming in peth1 are heading out
vif0.0.  This is *not* what I want!

Nov 25 13:34:42 rivendell kernel: IN= OUT=xenbr0 PHYSIN=peth1 PHYSOUT=vif0.0 
SRC=192.168.1.3 DST=216.38.80.20 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=40161 DF 
PROTO=TCP SPT=49361 DPT=80 WINDOW=5840 RES=0x00 SYN URGP=0 

The routing table is simple - it uses the automatically created routes
for the interfaces (192.168.0.0/23 goes to eth1, isp's network goes to
eth0, and the default gw is my isp's, out eth0).  I'm having trouble
determining why packets originating from an interface on the bridge are
simply ignoring the default route, though - 216.38.80.20 is most
certainly not on my network, and kernel routing should be taking care
of redirecting it out eth0, as per my routing table.

This looks like a bug (can anyone tell me why a packet not destined for
my local net, ignoring the default route is *not* a bug?).  The
question is - is it a Xen bug, or is it a bridge bug?


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Mike Edwards                    |   If this email address disappears,   
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