Re: [Xen-users] network interface and vlans

Janko Harej
2007-09-14T12:01:11Z

Hi,

thanks - now i've seen my error - wrong configuration

instead of

vif=[ 'mac=00:16:3e:71:31:a2,bridge=xenbr3' ]

I had

vif=[ 'mac=00:16:3e:71:31:a2' , 'bridge=xenbr8' ]

so I got two interfaces one with fixed mac but not working because it was
not linked to bridge and one with everythime new mac addreess but linked to
right address

Thanks for suggestions

bye



2007/9/14, Stefan Berner
<Stefan.Berner@lrz-muenchen.de>:
>
> Hi Janko,
> Janko Harej wrote:
> > Hi,
> >
> > I've configured dom0 sistem to use vlans. So I have
> >
> > eth0, vlan2, vlan3
> >
> > and bridges xenbr0, xenbr2, xenbr3
> >
> > then I've configured domU to use xenbrX
> >
> > Problem: everytime I boot domU I get different network interface in
domU
> >
> Do you have defined fixed mac-Addresses? Otherwise your NIC gets
> everytime a new hardware address and your udev especially the Suse ones
> get confused.
> vif = [ 'mac=xx:xx:xx:xx:xx:xx,bridge=xx' ]
>
> > Exampe:
> >  - first boot - I have eth0 - nonworking and eth2 - working
> >  - second boot of same machine - I get eth0 nonworking and eth4 - I
> > can configure it to work
> >  - third boot of same machine - I get eth0 nonworking and eth5 - I can
> > configure it to work
> >
> > I use SLES 10 SP1 on dom0 and domU.
> >
> Ok I see you have Suse.
> > I use /etc/xen/scripts/network-bridge to create xenbr0 and my script
> > to create other bridges
> >
> > skript is called: create_bridge vlan_number
> >
> >  bridge="xenbr${bridge}"
> >  vlan=$1
> >  vlan="vlan${vlan}"
> >  echo creating ${bridge}
> >  brctl addbr ${bridge}
> >  brctl stp ${bridge} off
> >  brctl setfd ${bridge} 0
> >  brctl addif ${bridge} ${vlan}
> >  ip link set ${bridge} up
> >
> if you have a fixed mac-address than you can specify an udev rule to
> bind the address to an interface:
> Add  in /etc/udev/rules.d/30-net_persistent_names.rules:
>
> SUBSYSTEM=="net", ACTION=="add",
SYSFS{address}=="00:60:dd:47:80:dc",
> IMPORT="/lib/udev/rename_netiface %k eth0"
>
>
>
> > So my question is - how to configure network interfaces in domU to
> > automaticly bring up networking?
> >
> > Thanks and bye
> >
> > --
> > Janko
> >
------------------------------------------------------------------------
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@lists.xensource.com
> > http://lists.xensource.com/xen-users
> Have fun with your "SLES10.1" system ;-). We had a lot of fun
with this
> excelent piece of software ;-) .
>
> Bye
>
> Stefan
>
>


--
Janko Harej
TŠC Nova Gorica