Hello, similar to how one can configure guest specific IP addresses via mac addresses: <ip address="192.168.122.1" netmask="255.255.255.0" localPtr="yes"> <dhcp> <range start="192.168.122.100" end="192.168.122.254"/> <host mac="00:16:3e:77:e2:ed" name="foo.example.com" ip="192.168.122.10"/> <host mac="00:16:3e:3e:a9:1a" name="bar.example.com" ip="192.168.122.11"/> </dhcp> </ip> We would like to configure guest specific dns-servers as would be done with the --dhcp-option of dnsmasq. I was expecting to be able to do something like: <host mac="00:16:3e:77:e2:ed" name="foo.example.com" ip="192.168.122.10" dhcp-option="dns-server,127.0.0.1" /> but it seems that this isn't the correct approach, as virsh net-edit default removes that attribute definition.

Could someone point me to the correct documentation?

Thank you! David Ayers

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Am Donnerstag, den 31.08.2017, 10:11 +0200 schrieb Martin Kletzander: > > AFAIK the support for this was not added. Feel free to request this in > our bugzilla [1] so that we can track it. Or, even better, send a patch > if you have some time ;) It should not be difficult. Okay, I'll be sure to add it to bugzilla sometime soon.

On Thu, Aug 31, 2017 at 01:09:14PM +0200, David Ayers wrote: > Am Donnerstag, den 31.08.2017, 11:32 +0200 schrieb David Ayers: >> >> Am Donnerstag, den 31.08.2017, 10:11 +0200 schrieb Martin Kletzander: >> > >> > AFAIK the support for this was not added.  Feel free to request >> this in >> > our bugzilla [1] so that we can track it.  Or, even better, send a >> patch >> > if you have some time ;) It should not be difficult. >> >> Okay, I'll be sure to add it to bugzilla sometime soon. > > Actually, this was already reported (on the last day of 2010): > https://bugzilla.redhat.com/show_bug.cgi?id=666556 > and seems to restated (two years later) in: > https://bugzilla.redhat.com/show_bug.cgi?id=824573 > > and by the looks of this, generic dhcp options at global scope are > already contentious, let alone at host scope. > > So I guess we my stop configuring dnsmasq via libvirt. > Oh, look at that.  It's good that you've found it.  Of course there are people more proficient in the networking area who have way more thing on their radar.  Looks like this is very often requested thing also.  I can't speak for arbitrary options, but named ones that we know what to map them to, should be fine and not rejected (at least not right away). But others (especially Laine; Cc'd) could be more specific WRT your request.