Prepending with another ASN you don't own

• Subject: Prepending with another ASN you don't own
• From: jlewis at lewis.org (Jon Lewis)
• Date: Fri, 16 Dec 2016 17:22:31 -0500 (EST)
• In-reply-to: <[email protected]>
• References: <CAF2cQ6O7xT[email protected]> <[email protected]>

On Fri, 16 Dec 2016, Randy Bush wrote:

> this is called path poisoning.  an italian friend used it in his phd
> thesis.  a few friends and i used it to detect use of default across
> the internet.

I've done this in the past as a work-around for insufficient BGP community 
support.  Just prepending the AS I wanted to ignore the paths.

But, if the problem is an anycast CDN choosing a sub-optimal path to reach 
you, you might try reaching out to them.  They're probably just as, if not 
more interested, in getting their traffic to you as efficiently as 
possible.

----------------------------------------------------------------------
  Jon Lewis, MCP :)           |  I route
                              |  therefore you are
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

• Follow-Ups:
  • Prepending with another ASN you don't own
    • From: randy at psg.com (Randy Bush)

• References:
  • Prepending with another ASN you don't own
    • From: andrew at andrewimeson.com (Andrew Imeson)
  • Prepending with another ASN you don't own
    • From: randy at psg.com (Randy Bush)

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