From owner-freebsd-hackers Sat Jan 24 13:43:27 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA15527 for hackers-outgoing; Sat, 24 Jan 1998 13:43:27 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from misery.sdf.com (misery.sdf.com [204.244.213.32]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id NAA15507 for ; Sat, 24 Jan 1998 13:43:11 -0800 (PST) (envelope-from tom@sdf.com) Received: from tom by misery.sdf.com with smtp (Exim 1.73 #1) id 0xwD58-0005Bi-00; Sat, 24 Jan 1998 13:25:38 -0800 Date: Sat, 24 Jan 1998 13:25:36 -0800 (PST) From: Tom To: "Louis A. Mamakos" cc: Dag-Erling Coidan Sm rgrav , Ollivier Robert , hackers@FreeBSD.ORG Subject: Re: IPv6 In-Reply-To: <199801242051.PAA05411@whizzo.TransSys.COM> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk 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