mailing list archives
Re: IP Filtering / CIDR Block Size / SprintLink
From: Lee Howard <spiff () access digex net>
Date: Mon, 27 Jan 1997 16:21:12 -0500 (EST)
On Mon, 27 Jan 1997, McLeodUSA wrote:
Who, in addition to SprintLink, is currently implementing IP
filtering based on CIDR block size (/19)? And where can I go
to learn more about this issue?
I've read the "Q&A conducted by Christy Hudgins-Bonafield with
Alecia Cooper, group manager SprintLink product management." at
http://techweb.cmp.com/nc/online/sprint.html but couldn't seem
to find much on what other carriers are doing.
AGIS published their route filter criteria:
Essentially, they will filter on /19 in the 206+.
They will filter on /24 for the 192-205 range.
Everything else (0-191) will be filtered in the /16.
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