v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)]

Iljitsch van Beijnum iljitsch at muada.com
Thu Feb 5 15:25:44 UTC 2009

On 5 feb 2009, at 1:16, Patrick W. Gilmore wrote:

> I guess I was thinking about v4 modems which do not get a subnet,  
> just an IP address.  If we really are handing out a /64 to each DSL  
> & Cable modem, then we may very well be recreating the same problem.

IPv4 thinking.

A single /64 isn't enough for a home user, because their gateway is a  
router and needs a different prefix at both sides. Users may also want  
to subnet their own network. So they need at least something like a /60.

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