On Thu, 14 Jul 2022 09:23:10 +0200 Mirsad Goran Todorovac <mirsad.todorovac at alu.hr> wrote: > So, yes, it appears that it is not listening on IPv6 UDP > [2001:b68:2:2600::3]:ipsec-nat-t . But another note: kernel doesn't support ipv6 nat-traversal. -- Tuomo Soini <tis at foobar.fi> Foobar Linux services +358 40 5240030 Foobar Oy <https://foobar.fi/>