It doesn't have to be the same address, just one that I can be sure is associated with a specific peer.
Here's what I see with ip -6 route
2405:201:d03c:d849::/64 dev enp1s0 proto ra metric 100 pref medium
fd42::1 dev wg0 proto kernel metric 256 pref medium
fe80::/64 dev docker0 proto kernel metric 256 pref medium
fe80::/64 dev vethe60384e proto kernel metric 256 pref medium
fe80::/64 dev veth9415685 proto kernel metric 256 pref medium
fe80::/64 dev vetha288603 proto kernel metric 256 pref medium
fe80::/64 dev veth99b7aad proto kernel metric 256 pref medium
fe80::/64 dev vethabf9238 proto kernel metric 256 pref medium
fe80::/64 dev enp1s0 proto kernel metric 1024 pref medium
default via fe80::8ea3:99ff:fe5a:d796 dev enp1s0 proto ra metric 100 pref high
It doesn't have to be the same address, just one that I can be sure is associated with a specific peer.
Here's what I see with
ip -6 route2405:201:d03c:d849::/64 dev enp1s0 proto ra metric 100 pref medium fd42::1 dev wg0 proto kernel metric 256 pref medium fe80::/64 dev docker0 proto kernel metric 256 pref medium fe80::/64 dev vethe60384e proto kernel metric 256 pref medium fe80::/64 dev veth9415685 proto kernel metric 256 pref medium fe80::/64 dev vetha288603 proto kernel metric 256 pref medium fe80::/64 dev veth99b7aad proto kernel metric 256 pref medium fe80::/64 dev vethabf9238 proto kernel metric 256 pref medium fe80::/64 dev enp1s0 proto kernel metric 1024 pref medium default via fe80::8ea3:99ff:fe5a:d796 dev enp1s0 proto ra metric 100 pref highI think I misunderstood how NAT works.