Date: Sat, 24 Jan 1998 13:25:36 -0800 (PST) From: Tom <tom@sdf.com> To: "Louis A. Mamakos" <louie@TransSys.COM> Cc: Dag-Erling Coidan Sm rgrav <dag-erli@ifi.uio.no>, Ollivier Robert <roberto@keltia.freenix.fr>, hackers@FreeBSD.ORG Subject: Re: IPv6 Message-ID: <Pine.BSF.3.95q.980124131602.19914B-100000@misery.sdf.com> In-Reply-To: <199801242051.PAA05411@whizzo.TransSys.COM>
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On Sat, 24 Jan 1998, Louis A. Mamakos wrote: > > Remember that very soon, IPv6 will no longer be science-fiction or > > just a nifty toy, but a necessity. We are this >< close to exhausting > > the current 32-bit address space... > > Uh, there is a big chunk of address space, previously identified as "class-A" > addresses, available. If you're going to worry about reasons for moving > to IPv6, address space exhaustion in the next few years isn't one of them. Amen to that. There are _huge_ blocks available on the low end of address space. For example 2/8 is reserved. That's 16 million addresses. Also some organizations have wasted a lot of space, probably because they aren't willing to re-allocate address space. For example, IBM has 9/8. I really doubt that IBM has 16 million hosts on the Internet, even with their Advantis Internet Service. Also, most of IBM is firewalled and can only reach the net via a proxy server! So IBM is giving out perfectly good 9/8 addresses to workstations that only can reach the Internet via a proxy server in some other non-9/8 block! It appears that BBN has two class A blocks, 4/8 and 8/8. They only appear to have recently started to allocated 4/8 it seems... Tom
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