Originalnachricht
Von: Randy Bush
Gesendet: Freitag, 13. Januar 2017 01:51
An: Brian E Carpenter
Cc: IPv6 List; int-dir(_at_)ietf(_dot_)org; Bob Hinden;
draft-ietf-6man-rfc4291bis(_dot_)all(_at_)ietf(_dot_)org; IETF
Betreff: Re: Review of draft-ietf-6man-rfc4291bis-06
RFC7421 (which is Informational) calls out RFC 6164 (not 6141!) as an
exception.
To be precise it says:
The de facto length of almost all IPv6 interface identifiers is
therefore 64 bits. The only documented exception is in [RFC6164],
which standardizes 127-bit prefixes for point-to-point links between
routers, among other things, to avoid a loop condition known as the
ping-pong problem.
I would suggest adding a similar exception statement in 4291bis.
just get rid of classful addressing. we went through this
in the '90s.
I can only support this, while /127 is a good exception for ptp links, it's
still useless for small nets with 4-5 IPs like a network between routers and a
Firewall cluster.