On 04/05/2010 12:04 PM, Dan Johansson wrote:
> Must I specify an IP for the br-eth3 interface?

You do not have to specify an IP address for the bridge.

In my case:

mainbr0   Link encap:Ethernet  HWaddr <mac>
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7328933 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6992 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:481076877 (458.7 MiB)  TX bytes:629184 (614.4 KiB)

tap0      Link encap:Ethernet  HWaddr <mac>
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:139390 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7460821 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:13554808 (12.9 MiB)  TX bytes:601113602 (573.2 MiB)


# brctl show
bridge name     bridge id               STP enabled     interfaces
mainbr0         8000.<mac>              no              tap0
                                                        eth0

eth0 is the interface connected to the physical LAN. mainbr0 ties the
VM's tap to eth0.

David

> 
> Regards,
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