Hi, Correct the proccess is trying to delete IPv6 address. I got the thing to work by deleting IPv6 address from the interface: [root@overcloud-computesriov-0 ~]# ip -netns ovnmeta-fae7b699-3086-4213-bec7-9d91737c934c addr del fe80::ac69:a2ff:feb3:89c9/64 dev tapfae7b699-31 [root@overcloud-computesriov-0 ~]# ip a s 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: tapfae7b699-31@if34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether fa:16:3e:d0:d6:01 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 169.254.169.254/32 brd 169.254.169.254 scope global tapfae7b699-31 valid_lft forever preferred_lft forever inet 10.0.0.2/16 brd 10.0.255.255 scope global tapfae7b699-31 valid_lft forever preferred_lft forever Now the metadata service is accessible and it looks as it should. I will try to figure out what is making the IPv6 address attach to the interface by default since I installed Wallaby on CentOS 9 machines (it is compatible with CentOS8 which is EOL). I earlier had some problems because of this so I had to work around them. I will let you know what I find. Thank you very much! Br, Davorin