Re: Longest prepend( 255 times) as path found

2022-08-28 Thread Mike Leber via NANOG
Here's a related good article: "Excessive BGP AS-PATH prepending is a self-inflicted vulnerability" https://blog.apnic.net/2019/07/15/excessive-bgp-as-path-prepending-is-a-self-inflicted-vulnerability/ You probably should not use a limit greater than 50 unless you want to encourage this

Re: What's going on with AS147028?

2022-07-12 Thread Mike Leber via NANOG
This kind of thing is a problem from time to time with the data we get from route collectors. When we see it we have to add the culprit ASN to a filter list we keep in bgp.he.net. It tends to be a repeat problem with some collectors and some ASNs. We haven't really figured out why people

Hurricane Electric has reached 0 RPKI INVALIDs in our routing table

2020-06-15 Thread Mike Leber via NANOG
I'm pleased to announce Hurricane Electric has completed our RPKI INVALID filtering project and we now have 0 RPKI INVALIDs in our routing table. Hurricane Electric has 29021 BGP sessions with 22109 prefix filters with 7191 networks directly and 8239 networks including Internet exchanges. We