Re: [Idr] BGP in an IPv6-only environment

Hi, Walt:

Please take a look at these documents:

   draft-ietf-idr-bgp-identifier-07.txt

   draft-ietf-idr-as4bytes-12.txt

-- Enke

Walt Lazear wrote:

>I was looking at RFC 2283 (Multiprotocol Extensions for BGP-4) and in
>the overview, it mentions that any BGP speaker has to have an IPv4
>address (to create the BGP Identifier attribute).  This does not bode
>well for the future of IPv6, to which I am sensitized by some ongoing
>Government work.  
>
>Talking to some who have created IPv6-only environments, it seems that
>they are only dealing with single subnets or very simple topologies, so
>BGP has not been an issue.  I also looked back in the IDR archives for a
>rationale, but could not find such a discussion recently.
>
>So, what is someone to do who wants to create an IPv6-only environment?
>Is it up to those defining (the future) version BGP-5 to create BGP
>identifiers longer than 32 bits or AS numbers longer than 16 bits (while
>we're at it), to accommodate the incredibly larger world of IPv6 (with
>128-bit addresses)?  Or was it a compromise in RFC 2283 to ignore the
>IPv6-only world (assuming it won't really happen on operational networks
>for decades) and therefore retain backward compatibility?  That's
>valuable in the short term, but not forever.
>
>Thanks in advance for any thoughts.
>
>Walt Lazear
>
>
>
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