Re: [Xen-users] e100 + Xen + VLAN -> VLANs don't work [SOLVED]?

[Tomasz Chmielewski <mangoo@xxxxxxxx>]

Timo Benk wrote:

(...)

> > if you add a vlan to peth0 (whole interface), the bridge xenbr0 (whole 
> > interface) will stop working.
> > at least, it does for me.
> Yes, for sure. Seems for me that you did not have a peth0 Interface.
>
> Configure the default bridged setup and try the script again.
>
> If it is still not working for you, i cannot help you any more.
>
> Anything i can say is, the described setup works for me.
All right, finally I found where the problem is.

In the end, it looks like your scripts do pretty much the same what the 
default Xen "network-bridge" script does.
VLANs work for me on 100 Mbit cards if I *only* use VLAN-tagged 
interfaces for Xen networking (these scripts achieve more or less what 
your scripts):
network-bridge start vifnum=1 netdev=eth0.100 bridge=xenbr100

network-bridge start vifnum=2 netdev=eth0.200 bridge=xenbr200

network-bridge start vifnum=3 netdev=eth0.300 bridge=xenbr300


However, I want to use normal, non-tagged networking, too:

network-bridge start vifnum=0 netdev=eth0 bridge=xenbr0


After starting the bridge for eth0/xenbr0, VLANs don't work anymore.

With 1 Gbit cards, I don't have this problem, and I can use a bridge 
with eth0.

To sum up - I could:

1) 100 Mbit cards + Xen - simultaneously:

- can use domains with VLANs
- can not use domains without VLANs

or:

- can not use domains with VLANs
- can use domains without VLANs


2) 1 Gbit cards + Xen

- can use both VLAN and non-VLAN networking with guest domains


The solution was:

* Do not start a bridge (like xenbr0) for eth0:

#network-bridge start vifnum=0 netdev=eth0 bridge=xenbr0


* Do *not* specify a bridge in configuration of domains that don't use 
VLANs:
- this one works:

vif    = [ 'ip=192.168.151.21, mac=00:16:3E:5B:19:14' ]


- this one will fail:

vif    = [ 'ip=192.168.151.21, mac=00:16:3E:5B:19:14', bridge='xenbr0' ]



--
Tomasz Chmielewski
http://wpkg.org


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