From: Mike Fischer <fischer+obsd@lavielle.com>
Subject: Re: examples/bgpd.conf: follow RFC9637
To: tech@openbsd.org
Cc: Denis Fondras <openbsd@ledeuns.net>
Date: Wed, 28 Aug 2024 10:56:56 +0200


> Am 28.08.2024 um 10:01 schrieb Denis Fondras <openbsd@ledeuns.net>:
> 
> RFC9637 published yesterday expands 2001:db8::/32 to 2001:db8::/20
> 
> Index: examples/bgpd.conf
> ===================================================================
> RCS file: /cvs/src/etc/examples/bgpd.conf,v
> diff -u -p -r1.24 bgpd.conf
> --- examples/bgpd.conf 24 Jul 2024 19:28:37 -0000 1.24
> +++ examples/bgpd.conf 28 Aug 2024 07:51:14 -0000
> @@ -36,7 +36,7 @@ prefix-set bogons {
> 0100::/64 or-longer # Discard-Only [RFC6666]
> 2001:2::/48 or-longer # BMWG [RFC5180]
> 2001:10::/28 or-longer # ORCHID [RFC4843]
> - 2001:db8::/32 or-longer # docu range [RFC3849]
> + 2001:db8::/20 or-longer # docu range [RFC3849] [RFC9637]
> 2002::/16 or-longer # 6to4 anycast relay [RFC7526]
> 3ffe::/16 or-longer # old 6bone
> 3fff::/20 or-longer # docu range [draft-ietf-v6ops-rfc3849-update]
> 

I don’t think this is correct. By my reading RFC 9637 introduces the 3fff::/20 and the 2001_db8::/32 range is unchanged. See specifically section 6. IANA Considerations of the RFC.

So the comment for 3fff::/20 might be changed to reflect RFC 9637 instead of the draft.

See also:
https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml


Mike