Re: [RRG] Providers and providers

[Iljitsch van Beijnum <iljitsch@muada.com>]

On 20 aug 2008, at 12:43, RJ Atkinson wrote:

> Large corporations that have large networks are ISPs.
> They might be ISPs with themselves as the only customer,
> but they are effectively the same as an ISP.

Right.

So this isn't a problem. If the average fortune 500 company has 500  
offices in different locations and aggregates those 500 offices into a  
single PA prefix, we end up with 500 prefixes in the routing table.  
The trouble start when they don't act as an ISP and have each office  
connect to the internet independently - but they still want portable  
address space. In that case, we end up with 250k prefixes in the  
routing table.

But the bigger problem is what happens with smaller organizations. If  
a fortune 500 company can get X prefixes (where X = 1 or X = number of  
offices) then why wouldn't a smaller company be entitled to the same  
(relative) number of prefixes?

We used to have the requirement that you'd number 200 end-users out of  
your prefix to be able to get an IPv6 address block, but that was seen  
as unworkable for a large number of reasons, some of them even valid.


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