oopsie, I realize I wasn't super clear below... see below. On Fri, Sep 11, 2026 at 10:53 AM Christopher Morrow <morrowc.lists@gmail.com> wrote:
The u-del folk (as2?) have some fun stories about this sort of problem :( I think they've even done at least 1 nanog talk about this?
There's also a long history of 'bad actors' using ASN at IX's (amsix and u-new-mexico I recall for
I don't think there was anything AMSIX could have actually done here. Why? becuse the actor showed AMSIX RS the 'correct' asn... the peerings in question were not via the RS though:( I believe this was also seen at several other IX's :( it's one of the reasons focus was brought on filtering and RPKI by us at the time. My larger point is really that: "This happens, because people are people... and your best path is to escalate up the peering fabric with logs and evidence of the behavior."