Re: [Xen-users] multiple vlan in dom0 and domu

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

Vladimir Elizarov wrote:

> I use a script network-multi vlan and network-bridge-vlan for 
> multiple VLANs in domu.
> Several domu uses the bridge vlanbr30. Need to dom0 as was in this 
> vlan'e. How? I tried to put a bridge interface ip, but with him 
> until the rest domu in vlanbr30 not get through. How to understand 
> the need to create a virtual interface (vifx.y) and add it to the 
> bridge vlanbr30. How?
If I follow you correctly, your physical interface uses VLANs and 
your Dom0 is configured with interfaces on multiple VLANs. You now 
want to connect one or more DomUs to one or more VLANs.
I see two ways of doing this, I'm sure someone will be along soon 
enough to say which is easiest to set up and use - and if both 
options are actually possible.
1) Attach the physical interface to a single bridge, and then every 
vif will automatically get access to all VLANs. Each DomU will have 
to be configured for VLAN operation. I'm assuming here that the 
bridge will just transparently forward tagged packets - would you 
need to adjust MTU ?
2) Attach each VLAN to a separate bridge - so each bridge is carrying 
untagged packets for a specific LAN. Then you would configure DomUs 
with as many interfaces as there are LANs they need to connect to - 
the DomU is NOT configured for VLANs as it now has a separate 
interface on each LAN.
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
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