nanog mailing list archives

Re: BGP prefix filter list


From: Brielle <bruns () 2mbit com>
Date: Wed, 15 May 2019 07:53:22 -0600

Would also cut out anyone who uses /24s for anycast, or just general traffic control...

Or as you put it, an insane amount of important stuff.

Sent from my iPhone

On May 15, 2019, at 7:44 AM, Phil Lavin <phil.lavin () cloudcall com> wrote:

We recently filtered out >=/24 prefixes since we're impacted by 768k day.

What kind of network are you running? Doing such prefix filtering on an eyeball network strikes me as insane - you'd 
be cutting off customers from huge swathes of the Internet (including small companies like us) that don't have large 
IPv4 sequential allocations.


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