Path: utzoo!utgpu!watmath!clyde!att!rutgers!tut.cis.ohio-state.edu!cwjcc!hal!nic.MR.NET!uwmcsd1!marque!uunet!munnari!murtoa.cs.mu.oz.au!ditmela!yarra!melba!gnb
From: gnb@melba.bby.oz (Gregory N. Bond)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Running out of Internet addresses?
Message-ID: <55@melba.oz>
Date: 30 Nov 88 23:35:30 GMT
References: <8811281821.AA00300@bel.isi.edu> <207@logicon.arpa>
Organization: Burdett, Buckeridge & Young Ltd, Melbourne
Lines: 22
Reply-To:

In article <207@logicon.arpa> Makey@LOGICON.ARPA (Jeff Makey) writes:
>My calculations give 128 class A networks, 16384 class B networks, and
>4194304 class C networks, for a total of about 4.2 million network
>numbers.  Some of these are reserved and some (about 1200) are already
>registered (okay, listed in the host table).

Just last week we registered 2 class C addresses in the setup
stages of what may become interneted sites.  The net numbers were
192.43.blah.   Now, assuming net numbers are allocated sequentially,
there are approx (44*256) allocated, which is about 11000.  So only
1 in 10 assigned numbers is currently interneted.  And virtually
none (well, 0.25%) of the class C address space has been used.
Plenty of room!

But class A/B nets may be at a premium.  Perhaps the focus should
be in combining class C nets (the reciprocal of subnetting?)

Greg (who is not an IP guru but owns 2 net numbers).
-- 
Gregory Bond, Burdett Buckeridge & Young Ltd, Melbourne, Australia
Internet: gnb@melba.bby.oz.au    non-MX: gnb%melba.bby.oz@uunet.uu.net
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