Re: IPv6 prefixes longer then /64: are they possible in DOCSIS networks?

In a message written on Tue, Nov 29, 2011 at 11:39:06AM -0500, Ray Soucy wrote:

We run both systems, in production, using DHCPv6 on prefixes much smaller than 64-bit (typically 120 or 119; we mirror whatever the IPv4 prefix length is).

Can you explain a bit more about how this works? My understanding of the current DHCPv6 implementations is that they had a hard assumption of a /64 prefix and the ability to do SLAAC and hear a valid RA in order to do DHCPv6. Are you doing anything special to make this happen with smaller subnets? -- Leo Bicknell - bicknell@ufp.org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/