On 10/10/22 9:20 AM, Stephane Bortzmeyer wrote:
But theoretically every filtered /24 could be routed via smaller
prefix /23 /22 /21 or etc.
I don't think this is true, even in theory, specially for legacy
prefixes. There is probably somewhere a Geoff Huston survey on /24
without a covering route.
There's lots of legacy blocks out there that are only /24 in size...
Like my primary IPv4 block, for example.
I believe you'll also find them referred to as 'portable' blocks.
--
Brielle Bruns
The Summit Open Source Development Group
http://www.sosdg.org / http://www.ahbl.org
