All, I am using latest engine and vdsm 4.20.23-1. I installed vdsm on centos7 vm and after the installation my vm stopped resolving names. Here is my nic configuration before installation: TYPE="Ethernet" BOOTPROTO="dhcp" DEFROUTE="yes" PEERDNS="yes" PEERROUTES="yes" IPV4_FAILURE_FATAL="no" IPV6INIT="yes" IPV6_AUTOCONF="yes" IPV6_DEFROUTE="yes" IPV6_PEERDNS="yes" IPV6_PEERROUTES="yes" IPV6_FAILURE_FATAL="no" NAME="eth0" UUID="0079668a-8708-46ad-8dbf-da418ae6f77e" DEVICE="eth0" ONBOOT="yes" here is after: # Generated by VDSM version 4.20.23-1.el7.centos DEVICE=eth0 BRIDGE=ovirtmgmt ONBOOT=yes MTU=1500 DEFROUTE=no NM_CONTROLLED=no IPV6INIT=no and the bridge: # Generated by VDSM version 4.20.23-1.el7.centos DEVICE=ovirtmgmt TYPE=Bridge DELAY=0 STP=off ONBOOT=yes BOOTPROTO=dhcp MTU=1500 DEFROUTE=yes NM_CONTROLLED=no IPV6INIT=yes DHCPV6C=yes IPV6_AUTOCONF=no Thanks, Piotr

IPv6 only DNS? Cool (if it works) :)

Martin On Wed, Apr 25, 2018 at 11:43 AM, Piotr Kliczewski <piotr.kliczewski(a)gmail.com&gt; wrote: > In addition here is my resolv.conf > > ; generated by /usr/sbin/dhclient-script > nameserver 2001:730:3ed2::53 > nameserver 2001:730:3ed2:1000::53 > search localdomain > > On Wed, Apr 25, 2018 at 11:26 AM, Piotr Kliczewski > <piotr.kliczewski(a)gmail.com&gt; wrote: >> All, >> >> I am using latest engine and vdsm 4.20.23-1. I installed vdsm on >> centos7 vm and after the installation my vm stopped resolving names. >> >> Here is my nic configuration before installation: >> >> TYPE="Ethernet" >> BOOTPROTO="dhcp" >> DEFROUTE="yes" >> PEERDNS="yes" >> PEERROUTES="yes" >> IPV4_FAILURE_FATAL="no" >> IPV6INIT="yes" >> IPV6_AUTOCONF="yes" >> IPV6_DEFROUTE="yes" >> IPV6_PEERDNS="yes" >> IPV6_PEERROUTES="yes" >> IPV6_FAILURE_FATAL="no" >> NAME="eth0" >> UUID="0079668a-8708-46ad-8dbf-da418ae6f77e" >> DEVICE="eth0" >> ONBOOT="yes" >> >> here is after: >> >> # Generated by VDSM version 4.20.23-1.el7.centos >> DEVICE=eth0 >> BRIDGE=ovirtmgmt >> ONBOOT=yes >> MTU=1500 >> DEFROUTE=no >> NM_CONTROLLED=no >> IPV6INIT=no >> >> and the bridge: >> # Generated by VDSM version 4.20.23-1.el7.centos >> DEVICE=ovirtmgmt >> TYPE=Bridge >> DELAY=0 >> STP=off >> ONBOOT=yes >> BOOTPROTO=dhcp >> MTU=1500 >> DEFROUTE=yes >> NM_CONTROLLED=no >> IPV6INIT=yes >> DHCPV6C=yes >> IPV6_AUTOCONF=no >> >> Thanks, >> Piotr > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel

Sorry for breaking your use case. Marcin can show you how to write an ifcfg hook which reinroduces IPV6_ entries to the ifcfg file.

We never supported IPV6 default route; but I would have expected add host flow to at least maintain your autoconf. Could you file a bug with your *vdsm.log and engine.log from the time of add-host?