[libvirt-users] Some missunderstanding in the wiki page

[Tom Hughes]

On 01/07/10 09:11, Leopold Palomo-Avellaneda wrote:
> A Dimecres 30 Juny 2010, Tom Hughes va escriure:
>
>> The common configuration that the wiki is documenting is presumably the
>> case where the host has a single ethernet interface that is shared by
>> the host and the guests. In that configuration the bridge does have an
>> address, which is the address of the host machine.
>
> and then you can assign _another_ IP to the guest or must assign the same?

A different IP or the two will fight during ARP resolution with both the 
host and the guest trying to claim the IP address.

>> Basically a bridge is like a virtual ethernet switch inside your
>> machine, where one port is connected to each device that is enslaved to
>> it and another port is connected to the kernel's IP stack - that port
>> appears as the brN interface and can have an IP address (for the host)
>> assigned to it.
>
> but, my main doubts is about to have a sever with several nics and several
> guest. I think that a good approach (if it's possbile) is to have a an
> specific nic for each guest. No?

Sure if you've got spare nic's in the host or you need maximum 
performance then that may well be a good idea.

The single nic case that I described is more for the average person 
running a few vms on their workstation.

Tom

-- 
Tom Hughes (tom at compton.nu)
http://compton.nu/