FW: IPv6 stumble

Glenn Tapley (gtapley) gtapley at cisco.com
Wed Apr 30 16:51:30 CEST 2008

I received this query from an acquaintance and would love to know what
the true story is here.  Any ideas?


Subject: IPv6 stumble

Shared a cab from the airport with an engineer.  He said the IPv6 has
just run into its first big stumble.  As you know one of IPv6's claim to
fame is that addresses would be handed down from ISPs to the customers.
This would make address summarization and therefore route summarization
easier.  However so many end customers have been directly assigned
address that routing in the IPv6 bone has become flat (one of the big
problems with the IPv4 bone).  The engineer indicated he is working on a
project to redefine the IPv6 format to include a orginization ID to
address this problem. Anyone else heard anything about this?
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