Re: [Xen-users] Virtual Machine Interfaces

["Fajar A. Nugraha" <list@xxxxxxxxx>]

On Wed, Dec 29, 2010 at 8:53 PM, Russell Seymour
<russell.seymour@xxxxxxxxxxxxxxxxxxx> wrote:
> Good afternoon,
>
> I have a host on which I am running Xen.  I have succesfully created a new
> guest machine and I can connect to it using routed networking.  I am not
> able to used bridged due to restrictions with my hosting company.

You can use bridge networking with a custom bridge not connected to
any dom0's eth, and making dom0 a router/firewall for domUs. If you're
familiar with managing router/firewall, this setup is actualy easier
to manage.

One example of such setup is virbr0 created by libvirt (bridge + nat).

>
> This server has a connection to my VPN on interface tap0.  I would like to
> add another interface to each of my virtual machines on this VPN network
> which means that I need to be able to route over the tap0 interface (I
> think).  However I have not been able to accomplish this and searching
> around the internet has not provided me with a complete answer.  If anyone
> has any pointers on this please can you forward them on?
>

You can try :
- create a bridge manually on dom0 (call it brtap0 or whatever)
- put tap0 on that bridge (you can use openvpn's --up argument to do
this automatically, see openvpn's manual)
- add another interface on domU's config, but specifically use
"script=vif-bridge" on that vif's definition, and put it on the same
bridge

That way you should be able to use both route and bridge networking.

-- 
Fajar

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users