> From: Keith Moore <[EMAIL PROTECTED]>
> Subject: Re: Taking two steps back (Was: Re: one question...)
> Date: Mon, 02 Dec 2002 10:48:43 -0500
>
> > 2) There seems to be a need for a globally unique version of Site Local
> > addresses (GUSL), so we should just define a new block for them.
> > These would require registration, and perhaps a fee, just like when
> > you get a domain name.
>
> I think it's still up in the air as to whether these are really local
> to a site in the sense that site-locals were assumed to be. In other
> words, can they be routed between sites by private agreement?
Sure, why not? I don't think we can stop it from happening. And
I don't see anything inherently wrong with it. The problem with
trying to globally route PI addresses is the routing table explosion
it causes to the global internet. If a site wants to route SLs or
GUPI addresses with another site over a private link, then they are
just bloating their own routing tables (but probably not enough bloat
to cause serious problems).
I see 3 options:
1) State that PI addresses (SL, GUSL/GUPI, GRUPI) are not
routeable between sites, even over private links.
2) State that PI addresses (SL, GUSL/GUPI, GRUPI) are only
routeable between sites over private links.
3) State the PI addresses are not routeable over the global internet.
I don't think that stating #1 is going to prevent #2, so I'd vote for #3.
As long as people don't impact the global internet, how they choose to
configure private links is up to them.
> > 4) The people who really want GRUPI addresses should work on the scaling
> > issues with routing, and if that is ever solved then a new block of
> > addresses can be allocated for GRUPI.
>
> or they can just start routing GUPIs.
Yes, but as others have pointed out, if there are filters everywhere
to block them it might be easier to create a new block for GRUPI
addresses than trying to "upgrade" the GUPI addresses.
-David Borman
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