Re: Setting up the network interface on Linux domU

[Damian Sobczak <damian.sobczak%gmail.com@localhost>]

Ok, I thank all for your help.

I locked down the the hardware eth address in the domU's config file.


LG,
Damian

2009/1/30 Luke S Crawford <lsc%prgmr.com@localhost>:
> Damian Sobczak <damian.sobczak%gmail.com@localhost> writes:
>
>> On my Debian installation I have the network interface specified
>>
>>
>> iface eth2 inet dhcp
>>
>>
>> but on the Debian domU it's eth16, after each reboot or shutdown it's
>> a different interface number.
>
>
> this is because you didn't specify a mac=  in your vif=[''] statement.
> put a vif=['MAC=XX:XX:XX:XX:XX:XX'] (where X is valid hex chars) and the eth
> will stop incrementing.
>
> the idea is that when debian sees a new NIC, it wires it down to the mac
> address using udev.  If you don't specify a mac in the config file, xen
> will automatically assign a random mac address; a different mac every time
> you reboot.    So every time debian reboots, it's seeing a new network card,
> and wiring that down to the next available eth interface.
>
> (if you want, you can also look into the debian udev scripts and prevent it
> from locking down the eth, but I just lock down the mac on all my DomUs.)
>