nanog mailing list archives

Re: CIDR FAQ


From: rrv () uiuc edu (Ross Veach)
Date: Fri, 18 Aug 1995 12:11:16 -0500

At 4:57 PM 8/17/95, bmanning () ISI EDU wrote:
Ah. here is the rub.  When you ISP buddies come back, you should ask
them to return the origianal /22 for a /20.  That way, the total size
of the routing system stays the same!

If everyone did a clever job of allocation, and the ISP in question had
grown quickly enough, you'd be able to expand the that /22 into a /20 at
the very same address because the next 3 /22s would still be available.

But I've already beaten that horse...




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