[libvirt] Seamless spice-migration on hosts with multiple interfaces

Hi everyone I have a setup in which the VM-nodes have different interfaces for migration (internal network) and public/spice access (public network). Now, when I try to migrate a VM with a connected spice client, the client always gets disconnected instead of seamlessly migrated. The problem is that libvirt passes the spice client the hostname according to the IP of the target interface of the migration instead of the public interface (this has been confirmed using the spicy client which displays an error during migration saying that it can't find the new host "<internal hostname>"). What I tried: * setting spice_listen in /etc/libvirt/qemu.conf * defining a network in libvirt for the public network and using a network in the listen-option for spice in the VMs XML But the problem persists and the client still gets the internal (migration) address instead of the public where spice is listening on. This is with libvirt 0.9.13. Has anyone seen this behaviour before? I tried to track down this problem and I'm not sure whether I find one bug already, but the following code didn't look right. So I tried to fix it (but the problem was still present): --- src/qemu/qemu_migration.c.orig 2012-07-20 16:46:59.669855341 +0200 +++ src/qemu/qemu_migration.c 2012-07-20 16:47:58.637546032 +0200 @@ -1036,7 +1036,7 @@ if (ret == 0) { ret = qemuMonitorGraphicsRelocate(priv->mon, cookie->graphics->type, - cookie->remoteHostname, + cookie->graphics->listen, cookie->graphics->port, cookie->graphics->tlsPort, cookie->graphics->tlsSubject); Thanks in advance, Tiziano