[pantalaimon]

RFC 2460 dates back to 1998 [0]. There was an updated standard published as RFC 8200 [1] in 2017, but it is not uncommon that standards get updated by a new revision - the current standard is just as 'finalized' as the 1998 version was.

[0] https://datatracker.ietf.org/doc/html/rfc2460 [1] https://datatracker.ietf.org/doc/html/rfc8200

[BlueTemplar]

Hmm, but weren't there a lot of changes between 1998 and 2017 in terms of how IPv6 security should work ? (often changing random suffixes and such ?)