On Fri, Aug 07 2020, Florian Obser <[email protected]> wrote:
> No longer prevent TCP connections to IPv6 anycast addresses.
>
> RFC 4291 dropped this requirement from RFC 3513:
>    o  An anycast address must not be used as the source address of an
>       IPv6 packet.
>
> And from that requirement draft-itojun-ipv6-tcp-to-anycast rightly
> concluded that TCP connections must be prevented.
>
> The draft also states:
>
> The proposed method MUST be removed when one of the following events
> happens in the future:
>
> o  Restriction imposed on IPv6 anycast address is loosened, so that
>    anycast address can be placed into source address field of the IPv6
>    header[...]

Also worth reading: https://tools.ietf.org/html/rfc4942#section-2.1.6

> OK?

ok jca@

If you don't want to remove M_ACAST from sys/mbuf.h, can you please at
least change the comment?  /* obsolete */ or something.

-- 
jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF  DDCC 0DFA 74AE 1524 E7EE

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