[28878] in North American Network Operators' Group
Re: Class B Address
daemon@ATHENA.MIT.EDU (Sean Donelan)
Sat May 20 23:06:39 2000
Date: 20 May 2000 20:04:30 -0700
Message-ID: <20000521030430.9028.cpmta@c004.sfo.cp.net>
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To: hchan@newbridge.com
From: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
On Sat, 20 May 2000, "HANSEN CHAN" wrote:
> Can someone point me to some documents/weblink on how many class B
> addresses are still available? Have the registries like RIPE/ARIN/APRIN
> exhausted class B addresses already? IPv6 Forum presentations have me
> believed class B addresses are exhausted and the situation is especially
> bad for country like China. However, after checking with some Chinese I
> was told just the opposite. So I am wondering is address scarcity just a
> hype?
My question is what is your requirement for a "classfull" address?
With CIDR you can create the same number of addresses out of any of
the traditional Class A, B, or C areas. There are plenty of /16 address
blocks available. I have no idea of any need a country such as China has
which couldn't be satisfied by using /16 CIDR blocks.
If you stop thinking in terms of traditional classfull address blocks, I
think you find much of the "scarcity" goes away.
