--- fixes: - | By default, libvirtd uses ports from 49152 to 49215 for live-migration as specified in qemu.conf, that becomes a subset of ephemeral ports (from 32768 to 61000) used by many linux kernels. The issue here is that these ephemeral ports are used for outgoing TCP sockets. And live-migration might fail, if there are no port available from the specified range. Moving the port range out of ephemeral port range to be used only for live-migration.