North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: v6 subnet size for DSL & leased line customers
On Dec 22, 2007 12:23 PM, Ross Vandegrift <[email protected]> wrote: > > On Fri, Dec 21, 2007 at 01:33:15PM -0500, Deepak Jain wrote: > > For example... Within one's own network (or subnet if you will) we can > > absorb all the concepts of V4 today and have lots of space available. > > For example... for the DMZ of a business... Why not give them 6 bits > > (/122?) are we anticipating topology differences UPSTREAM from the > > customers that can take advantage of subnet differences between /64 and > > /56 ? > > I am confused on this point as well. IPv6 documents seem to assume > that because auto-discovery on a LAN uses a /64, you always have to > use a /64 global-scope subnet. I don't see any technical issues that > require this though. ICMPv6 is capable of passing info on prefixes of > any length - prefix length is a plain old 8bit field. > Uhm, so sure the spec might be able to do something different than /64 but most equipment I've used only does auto-conf if the prefix is a /64 :( Somewhere along the path to ipng we got reverted to classful addressing again :( -Chris
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