libvirt users - Apr 2010 - Default network needed?

Hi list, 

long(ish) time libvirt users, first time poster.

Question: Is the default network (192.168.122.0/24, NAT) created by 
libvirt needed at all when guests are connected to the host's bridge 
device (and not the default network)

I.e. when I have

<interface type='bridge'>
  <source bridge='br0'/>
  <model type='virtio'/>
</interface>

in my guest definition is the default network ever even used? Or can I 
safely remove it?

This may be a naive or stupid question but I have not found a definitive 
answer studying the documentation. Can anybody enlighten me?

Thanks, 

Andreas
-- 
Andreas Ntaflos 

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On Sat, Apr 17, 2010 at 04:20:25AM +0200, Andreas Ntaflos
wrote:
> Hi list, 
> 
> long(ish) time libvirt users, first time poster.
> 
> Question: Is the default network (192.168.122.0/24, NAT) created by 
> libvirt needed at all when guests are connected to the host's bridge 
> device (and not the default network)
> 
> I.e. when I have
> 
> <interface type='bridge'>
>   <source bridge='br0'/>
>   <model type='virtio'/>
> </interface>
> 
> in my guest definition is the default network ever even used? Or can I 
> safely remove it?
> 
> This may be a naive or stupid question but I have not found a definitive 
> answer studying the documentation. Can anybody enlighten me?
> 
> Thanks, 
> 
> Andreas
Hello Andreas. It's not a naive question at all, but it has a simple
answer: Yes, you can safely remove it if you haven't attached any VMs
to it. We set it up strictly as a convenience, mostly for developers
who are trying to use virt on a laptop with a wifi connection that is
up and down a lot.

Take care,
--Hugh

-- 
=======================================================Hugh Brock, hbrock at
redhat.com, +1-215-564-3232
Deltacloud API + Portal http://deltacloud.org
Libvirt virtualization library http://libvirt.org
========================================================