Bogon ASN Filter Policy

Thomas King thomas.king at de-cix.net
Wed Jun 8 19:27:32 UTC 2016


Hi all,

a quick update from the DE-CIX side: we see in total 25 routes containing bogon ASNs at all the route servers at all DE-CIX IXPs (so far we just filtered the private ASN space). We directly contacted the customers sending the routes to inform them about the upcoming change in filtering.

Best regards,
Thomas


> On 08 Jun 2016, at 15:56, Michael Hare <michael.hare at wisc.edu> wrote:
> 
> I'm not against the theory of what is being proposed, but I was surprised to see little discussion of this announcement on list.
> 
> Upon examination on my view of the DFZ from AS3128 I see over 400 upstream routes falling into this category, mostly in the 64512 - 65534 range.  Based on our flow bandwidth stats we chose to reach out to several origin ASN, two fairly well known, as a courtesy.
> 
> For the *TT's who are planning on implementing shortly, have you went through a similar diagnostic effort and what might you share or report on such endeavors?
> 
> -Michael

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