Public bug reported: Please note that you can't ssh to a link-local IPv6 address (fe80::) without an interface identifier and being connected to the same subnet.
So "ssh ubuntu@fe80::c23f:d5ff:fe61:dce" will fail as you need something like "ssh ubuntu@fe80::c23f:d5ff:fe61:dce%eth0" where "eth0" is the name of the device which is directly connected to the subnet your target host is on. For this work, I think it'd probably be best to just hide anything that's not "scope global". Address scoping is mostly an IPv6 thing, but it's been retrofited for IPv4 in iproute2, so you can query global addresses with: stgraber@dakara:~/data/code/ubuntu-archive/ubuntu-archive-tools$ ip -4 addr show dev lxdbr0 scope global 4: lxdbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 inet 10.90.151.1/24 scope global lxdbr0 valid_lft forever preferred_lft forever stgraber@dakara:~/data/code/ubuntu-archive/ubuntu-archive-tools$ ip -6 addr show dev lxdbr0 scope global 4: lxdbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000 inet6 2001:470:b368:b2b5::1/64 scope global valid_lft forever preferred_lft forever ** Affects: subiquity (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1664371 Title: "this device is registered to" screen should only show scope global addresses To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/subiquity/+bug/1664371/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs