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xen-users
Re: [Xen-users] xen vlans in domU
Hi,
I used the instructions/scripts at the following link to do my VLAN's.
Works pretty well!
http://renial.net/weblog/
On Tue, Aug 03, 2010 at 07:49:03PM +1000, James Harper wrote:
> >
> > Hello.
> > I'm trying to use vlan in domU, but have something strange:
> > I created bridge on eth0. This interface was configured as trunk with
> > vlan 300, 301. I use this bridge in my domU, and I can see tagged
> > packets when run tcpdump in domU. Also I created interface on domU to
> > work with vlan 300. On this interface I see untagged packets in vlan300.
> > And everything looks fine.
> > But when I'm trying to send out packets through interface with vlan300
> > something happen. On domU in eth0 interface i see that packet was tagged
> > as vlan 300, but on dom0 I see that package doesn't have tag and sending
> > to switch as untagged which is incorrect.
> >
> > Why does kernel remove tag from outgoing packets?
> > Is anyone using trunk inside of domU?
> >
> > I'm using xen 3.4.3 on Centos 5.5 with kernel 2.6.18.
> >
>
> I'm not sure I quite understand what you want to do, but I think you need to
> use ebtables, in particular the 'broute' table, to tell Linux how you want
> tagged packets to behave. One thing I was never able to do was to tell Linux
> to place a copy of the tagged packet on one bridge so that I could have a
> trunk to a DomU whilst simultaneously l2 routing packets to their correct
> interfaces.
>
> James
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
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