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Re: router behaviour with prefixes longer than /64

Brian E Carpenter <brian.e.carpenter@gmail.com> Tue, 18 March 2014 07:37 UTC

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Date: Tue, 18 Mar 2014 20:37:17 +1300
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: Usman Latif <osmankh@yahoo.com>
Subject: Re: router behaviour with prefixes longer than /64
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On 18/03/2014 10:55, Usman Latif wrote:
> I think (although not sure if such a method exists today) that if there was a way to identify looking at specific (reserved?) bits in the upper 64-bit portion of the IPv6 address to tell the routing system whether the lower 64-bits are IID or not, that would probably give best of both worlds to IPv6 addressing and provide a more efficient use of address space..

No, we are definitely not going to waste bits in the routing prefix for this.

   Brian

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