Prepending with another ASN you don't own
randy at psg.com
Fri Dec 16 23:22:42 UTC 2016
>> 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
> 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.
apologies. i should have been more explicit. both of the examples
were using path poisoning for routing research. it is not a technique
i would reccommend in normal operations.
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