Smaller than a /24 for BGP?

William Herrin bill at
Tue Jan 24 18:51:32 UTC 2023

On Tue, Jan 24, 2023 at 10:19 AM Justin Wilson (Lists) <lists at> wrote:
> Have there been talks about the best practices to accept things smaller than a /24?

Hi Justin,

The short version is: it could happen but it won't. There's no
technical obstacle. It's purely administrative. Tens of thousands of
organizations would have to agree to accept smaller prefixes.That
would only happen if there was something in it for them to start doing
so, something major. And even then it would be a hard lift. There
isn't. Some of those organizations run BGP set up by the last guy, the
current gut doesn't really grok it, and he certainly doesn't subscribe
to any information channels where it's discussed. So it's not going to

Bill Herrin

For hire.

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