[Xen-users] Frustrating experience - Xen networking.

[Steve Lamb <grey@xxxxxxxxx>]

Hello,
    I am having a frustrating time trying to get bridge networking working. 
I've gone over the Wiki page on the topic, a few of the howtoforge pages and 
everything that I am doing is failing utterly.
    What I want to achieve is to have Dom0 be a stub running two DomUs.  One 
DomU being a router/firewall and the other being the rest of what is on the 
current machine.  However at this point I would be happy with just getting 
Dom0 talking to DomU and both talking to the local network.  1 interface card, 
1 LAN.  Baby steps.
    FWIW this is being done with Debian Etch using Xen 3.0.3.

    Here are the relevant directives from xend-config.sxp.  The _wip 
designation is for "work in progress".  I have a working network-route 
configuration which I swap in when I need access to the LAN/Internet.  That 
works like a charm for Dom0.
{grey@teleute:/etc/xen} grep -v # xend-config.sxp_wip | sort | uniq
(dom0-cpus 0)
(dom0-min-mem 196)
(logfile /var/log/xen/xend.log)
(loglevel DEBUG)
(network-script 'network-bridge netdev=eth1 bridge=xenbr1')
(vif-script vif-bridge)

    In the DomU configuration I have the following line:
vif = [ 'mac=00:16:3E:BA:17:79,bridge=xenbr1']

    When I boot up with that configuration the following happens:

    eth1's IP, 192.168.1.21 gets moved onto xenbr1, is that right?  The wiki 
page leads me to believe that is incorrect as the MAC/IP should go to veth1, 
correct?
    eth0 inside DomU is statically configured to 192.168.1.2.

    My network has a laptop on 192.168.1.7 which I am using as a ping target.

    With the above configuration Dom0 sees neither DomU or the laptop.  DomU 
sees neither Dom0 or the Laptop.  And, frankly, I didn't ping from the laptop 
since it was across the room.
    Any hints on a document which might help?  I'm following all the 
directions I can find even though they don't sync with one another.  In every 
case my results don't match the "viola!" at the end of the document.
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