On Thu, 26 Mar 2009 16:08:43 -0400, Michael DeHaan <mdehaan(a)redhat.com>
wrote:
James Cammarata wrote:
> On Thu, 26 Mar 2009 15:59:08 -0400, Michael DeHaan <mdehaan(a)redhat.com>
> wrote:
>
>> virbr0 as created by libvirt is a private network, it's not a real
>>
> bridge.
>
>> If you want your guests to be reachable, you need to create a real
>> bridge on your virtual hosts and use that as the --virt-bridge in
>>
> Cobbler.
>
>> Instructions are here:
>>
>>
https://fedorahosted.org/cobbler/wiki/VirtNetworkingSetupForUseWithKoan
>>
>> Making a snippet that automatically makes a bridge for the first
>> interface seems like a nice thing to do (or finding some way to do this
>> with interface objects).
>>
>> --Michael
>>
>
> FWIW, I run xen on RHEL5.2 and this is all pretty much setup for you
> there.
> The networking scripts handle the creation of the "bridge" for you, but
> I
> believe it is still up to you to setup the sysctl/iptables correctly so
> that natting/forwarding work. It's been a few months since I got it
> setup
> though, so I forget if I had to do any voodoo, but I have my vm's hiding
> quietly behind a private network here at work (the desktop team does not
> appreciate rogue dhcp servers breaking things...)
>
>
Yes,
xenbr0 is a real bridge.
If you have that, using xenbr0 is fine. I'll update the docs to make
that clearer.
--Michael
No, I'm using virbr0 on mine.
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