Until this gets vendored into coredns the code changes aren't done.
*** Bug 1852126 has been marked as a duplicate of this bug. ***
The fix is in the coredns-mdns plugin, so I'm setting the component to "Networking" with subcomponent "mDNS".
Verified on: [kni@provisionhost-0-0 ~]$ oc version Client Version: 4.5.0-0.nightly-2020-06-05-214616 Server Version: 4.5.0-0.nightly-2020-07-02-190154 Kubernetes Version: v1.18.3+6025c28 ***************************************************** According to Ben Nemec - The fix is the ip at the end of the mdns line. ***************************************************** IPV6 [core@master-0-0 ~]$ cat /etc/coredns/Corefile . { errors health :18080 mdns ocp-edge-cluster-0.qe.lab.redhat.com 0 ocp-edge-cluster-0 fd2e:6f44:5dd8::10f forward . fe80::5054:ff:fe4b:5b62%bond0 fd2e:6f44:5dd8::1 cache 30 reload template IN AAAA ocp-edge-cluster-0.qe.lab.redhat.com { . . output omitted [core@master-0-0 ~]$ ifconfig genev_sys_6081 genev_sys_6081: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 65000 inet6 fe80::7c66:f0ff:fe6a:e21d prefixlen 64 scopeid 0x20<link> ether 7e:66:f0:6a:e2:1d txqueuelen 1000 (Ethernet) RX packets 127951 bytes 36687078 (34.9 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 121808 bytes 44083589 (42.0 MiB) TX errors 7 dropped 0 overruns 0 carrier 0 collisions 0 IPV4 kni@provisionhost-0-0 clusterconfigs]$ oc version Client Version: 4.5.0-0.nightly-2020-06-05-214616 Server Version: 4.5.0-0.nightly-2020-07-02-190154 Kubernetes Version: v1.18.3+6025c28 [kni@provisionhost-0-0 clusterconfigs]$ [core@master-0-0 ~]$ cat /etc/coredns/Corefile . { errors health :18080 mdns ocp-edge-cluster-0.qe.lab.redhat.com 0 ocp-edge-cluster-0 192.168.123.127 forward . 192.168.123.1 . . output omitted [core@master-0-0 ~]$ ifconfig genev_sys_6081 genev_sys_6081: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 65000 inet6 fe80::a879:55ff:fe36:b53e prefixlen 64 scopeid 0x20<link> ether aa:79:55:36:b5:3e txqueuelen 1000 (Ethernet) RX packets 1146623 bytes 213461945 (203.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1087044 bytes 314429053 (299.8 MiB) TX errors 7 dropped 0 overruns 0 carrier 0 collisions 0 Verified!
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:2409
Reopening because we've had a request to fix this on the other platforms that use coredns-mdns.