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xen-users
Re: [Xen-users] can't get multiple VLANs to work
Sébastien CRAMATTE wrote:
Tomasz Chmielewski a écrit :
Angel L. Mateo wrote:
Hello,
I have Xen running with domUs in different VLAN's. I have xen on a
debian sarge server. My configuration is:
* In dom0, I have a bridge for each vlan (different than the native vlan
of interface eth0, that I don't need to tag). For each vlan the
configuration is (for vlan 302):
vconfig add eth0 302
/etc/xen/scripts/network-bridge start netdev=eth0.302 bridge=xen-br302
antispoof=no
/sbin/ifconfig eth0.302 up
* In the domU the configuration I have is:
vif = [ 'bridge=xen-br302' ]
* The only problem is that un domU I have to run "/usr/sbin/ethtool -K
eth0 tx off" after bring it up.
I this configuration, do you run a "normal" device (like eth0) in
domU, or is it also a VLAN (eth0.302 in dom0, but also in domU)?
I believe that is one or other ...
If you setup vlan per bridge in dom0 you just mount eth0 in domU
else you setup just the default bridge in dom0 and VLANs in each domU
Look at this blog, it's quite well explained ...
http://felipe-alfaro.org/blog/category/xen/
Yes, I've read it.
1. For me it works if:
- dom0 has one bridge, eth0 attached to it
- VLAN is made *only* in domUs
2. It doesn't work if:
- dom0 has multiple bridges, with different VLANs attached to it
- domU has a normal network setup (no VLANs configured)
In the case when it doesn't work, domU doesn't receive any packets -
"tcpdump -i eth0" shows only packets that domU wants to send, but
nothing else.
Only domU attached to "default bridge" (xenbr0 + eth0) has network
connectivity.
--
Tomasz Chmielewski
http://wpkg.org
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