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+++ This bug was initially created as a clone of Bug #1490482 +++

[original Bug comments removed and summarized]

RHEV (and others) would like to have a RARP packet sent "from the guest" whenever the guest's tap device is connected to a different bridge. libvirt is in control of changing the tap's connection, but is unable to inject packets into the tap's data stream. But according to dgilbert, there is a patch series (from VLad) for qemu that provided this ability via a QMP command that libvirt could call at the right moment:

  https://lists.gnu.org/archive/html/qemu-devel/2017-05/threads.html#05594

This BZ is being filed to request that patch series be finalized and pushed.

I would refer to Germano for the customer effect of this.

duping to 1465492 which is pretty much the same and is tracking the recent self-announce changes that went into qemu.

*** This bug has been marked as a duplicate of bug 1465492 ***