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AW: [Xen-users] xen and vlans

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: AW: [Xen-users] xen and vlans
From: "Lockenvitz, Jan \(EXT\)" <Jan.Lockenvitz.extern@xxxxxxxxxxxxxx>
Date: Thu, 15 Dec 2005 09:14:38 +0100
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Thread-topic: [Xen-users] xen and vlans
I think it should be sufficient to do as following:
- create and test the vlans as normal (i think you already did this)
- try to create the bridge as follows (for the first try without starting xend):

# network-bridge start netdev=vlan100 bridge=xenbr0

at least this was working on my debian testing installation but i have a problem now with incorrect tcp checksums in dom0 or domU.
See my post: http://lists.xensource.com/archives/html/xen-users/2005-12/msg00412.html

Please have a look whether you have the same problem.


Von: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] Im Auftrag von Manuel da Costa
Gesendet: Mittwoch, 14. Dezember 2005 22:34
An: xen users mailing list
Betreff: [Xen-users] xen and vlans

Hi all.

What is the canonical way of getting xen to fully work with 802.1q (vlans) ? After (re)searching i found many ways but so far none is working.

platform is gentoo (x86/32) and netwerk card a tg3. xen is v3.

my config is as follows ...

eth0 is  simply up (with no ip) and i created several eth0.x interfaces corresponding to several vlans.
eth0.10 is de 'default' vlan (i.e. default gw).

what i want is a way of each DomU connect to the world thru it's vlan bridge.

for instance ... for a domU i defined   bridge=xenbr0.10. and in /etc/xen/xend-config.sxp i defined

(network-script my-network-scripts)

contents of /etc/xen/scripts/my-network-scripts bellow

set -x
dir=$(dirname "$0")
"$dir/network-bridge" vifnum=0.25 start
brctl addif xenbr0.25 eth0.25
"$dir/network-bridge" vifnum=0.10 start
brctl addif xenbr0.10 eth0.10

but i allways get an error saying that i need to increase the number loopbacks because i have reached the limit. Fact is that the limit is way higher 'cause i increased it (sucessfully) to... 100.

What am i doing wrong ?

Many Thanxs in advance

Best Regards

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