[CentOS] Multiple IP Addresses for a bridge

Fri Apr 29 10:51:50 UTC 2011
Emmanuel Noobadmin <centos.admin at gmail.com>

On 4/29/11, Lucian <lucian at lastdot.org> wrote:
> Something seems out of order with the above; may I ask what exactly
> you are trying to achieve?
> Unless I read it all wrong you want (i.e.) x.x.x.2 on br0 and also on
> eth0? This cannot work.

Well, I have a physical connected to the ISP modem/router which
assigned the connection a block of 8 IPs

So I already have eth0 bridged to br0 using the IP x.x.x.2

Now I'm trying to figure out why a virtual guest with an eth0 device
assigned wth IP x.x.x.3 can't connect anywhere.

Looking at the Rx Tx of the vnet0 device that was generated, it seems
that the vnet0 is getting traffic but not sending them on.

So I'm wondering if it's because the bridge isn't assigned the x.x.x.3
IP hence ignoring the packets for/from x.x.x.3

And which then led me to try to assign more than 1 IP address. But
using options such as IPADDR_START and IPADDR_END in ifcfg-br0 doesn't
appear to work.

Neither did creating another bridge device ifcfg-br1 with the IP x.x.x.3 worked.

So I'm starting to wonder if it was possible in the first place.