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[Xen-users] Providing dhcp for a "private" bridge?

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Subject: [Xen-users] Providing dhcp for a "private" bridge?
From: larsks.21230602@xxxxxxxxxxxxx
Date: 19 Sep 2006 13:06:24 -0000
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Hello all,

I'd like to create a "private" bridge -- that is, one that doesn't
include an external interface -- and provide DHCP services to Xen VMs attached
to that bridge.  Mostly, this works great; creating the bridge and the Xen
VMs worked without a problem.

Getting dhcp working has been a little more

In dom0, "dummy0" is  I'd like dhcpd to listen
on this interface, but dhcpd says:

  No subnet declaration for dummy0 (

For whatever reason, dhcpd appears to be unable to deal with dummy interfaces.

What are other folks doing in this situation?  I could try assigning an
IP directly to the bridge device, rather than using the dummy interface, but
that strikes me as less than optimal (because it makes the bridge configuration

Thanks for your thoughts,

  -- Lars

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