[Xen-users] Specific vif-route or vif-bridge in DomU config file?

[Shannon <slafferty@xxxxxxxxxxx>]

   Is there any way to specific on the vif = [] line of a DomU config 
if an interface should be routed or bridged?
   Have a situation that I believe calls for wanting to use both 
methods at the same time.  (Bridging for almost everything, but routing 
for a few special use case DomUs)... I thought I saw mention in a man 
file someplace that this could be specified, but no ideal where I saw it 
now...
   Basically, we have a physical box with two ethernet ports, one goes 
to our internal private LAN, the other connects to the outside world.. 
want to fullfill three needs:
      - Every DomU needs to be able to access the private network that 
hangs off eth0, but doesn't need to be accessible FROM the private 
network (bridging at use).
      - Every DomU needs to be able to access the internet (hanging off 
Dom0's eth1), and *some* need to be accessible from the rest of the 
internet (routing at play).
      - Every DomU needs to be able to communicate with *each other*, 
freely, on the 192.168.x.x network that was created by libvirtd (or 
where-ever that was started)..
The first two I have working fine, using vif-route network-route, and 
some manual manipulation of the routing tables on the DomUs... the last 
one is driving me insane, as traffic from one DomU to another is showing 
up (for instance, in nfs, and even tcpdumps) as coming from the Dom0's 
IP address instead...   If I use brctl manually and add the appropriate 
vif#.0 to the bridge, it works okay, but if I can't automate it, it's 
not going to work out.  (ie: having to run brctl every time a DomU is 
restarted != fun).
If I switch xend-config over to bridging, I can make the third thing 
work, but lose the first two. :(   So I'm wondering if there's any way 
to specify in more detail how a specific vif should be built?   Or am I 
chasing this in entirely the wrong direction?  I'm assuming someone out 
there has wanted to do something similar before, I just can't seem to 
find mention anywhere online of *how* anyone has accomplished it. :)
- Shannon

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