Originalnachricht Von: Randy Bush Gesendet: Freitag, 13. Januar 2017 01:51 An: Brian E Carpenter Cc: IPv6 List; int-dir@xxxxxxxx; Bob Hinden; draft-ietf-6man-rfc4291bis.all@xxxxxxxx; 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.