On Wed, Sep 28, 2016 at 06:03:21PM +0200, Martin Wilck wrote: > On Wed, 2016-09-28 at 16:41 +0100, Daniel P. Berrange wrote: > > > Anyone who cares about VMs having the same IP address after resuming > > from suspend *must* configure persistent DHCP mappings for their > > guests. > > Relying on automatic assignment will always fail in the end, may be > > not immediately, may be not often, but it *will* fail at some point, > > usually at the worst possible time. > > I believe that setting "dhcp-authoritative" will be a major improvement > for many setups. Without it, VMs are *never* able to reacquire their > expired lease. With it, reacquiring the lease would work most of the > time (as far as I'm concerned, practically always). I reckon the > dnsmasq man page recommends it for a reason "when dnsmasq is definitely > the only DHCP server on a network". That certainly matches our deployment model for dnsmasq, so unless there's a obvious downside to it, it seems reasonable to add that. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list