Re: who gets a /32 [Re: IPV6 renumbering painless?]

[bmanning () vacation karoshi com]

> On Sat, Nov 20, 2004 at 12:58:17PM +0100, Iljitsch van Beijnum wrote:
> > On 19-nov-04, at 17:58, Stephen Sprunk wrote:
> > Don't have "real connectivity"?  I've personally worked with dozens of 
> > Fortune 500 companies that have internal FR/ATM networks that dwarf 
> > AT&T, UUnet, etc. in the number of sites connected.  Thousands of 
> > sites is common, and tens of thousands of sites in some cases.  Do you 
> > not consider these networks "real" because each site may only have a 
> > 16k PVC to talk to corporate?
>
> As far as I can tell, it's pretty rare for an 
> organization of this size to have their own IP network that they use to 
> connect all their sites to the global internet, for the simple reason 
> that leased lines, framerelay or ATM capacity is generally more 
> expensive than IP connectivity.

        it is not rare at all, in my experience. my personal
        dealings with 50+ multinational corporations show that 
        they -ALL- have their own corporate networks that are 
        isolated from the Internet and nearly all run IP over these
        internal corporate networks. the trival cost of dedicated
        lines, or FR/ATM cloud, or VPN overlay is much cheaper
        than a dependance on upstream providers (since no single provider
        can support their needs) or exposing corporate/trade secrets
        to the broader internet.  

> So a single large address block is of little use to such an 
> organization, unless they get to announce more specifics all over the 
> place.

        that does not follow, except from your faulty presumption
        above.

-- bill