to answer my own question, i did figure it out. although several
google hits suggested that it was necessary to run vconfig and set up
special bridges in the dom0, the way i got it working was to leave the
dom0 totally alone and simply run vconfig in the domU, then assign an
ip to the vlan interface.
the other gotcha is that you *must* change the domU vlan interface mtu
to 1496. otherwise small packets like pings will work, large
packets will hang the connection.
jason
---------- Forwarded message ----------
From: Jason Tower <jtower@gmail.com>
Date: Aug 13, 2006 12:21 PM
Subject: vlan in a domU
To: fedora-xen@redhat.com