Haha :) you are right. I just checked Caida AS ranking: http://as-rank.uu3.net/?as=2
A lot of "providers" for UDEL-DCN. Yeah right.. They all indeed probably try to prepend their AS 2 times ending up having ASN 2 in path. ---------- Original message ---------- From: Mike Davis <da...@udel.edu> To: nanog@nanog.org Subject: Re: Dodgy AS327933 ...? Date: Thu, 10 Aug 2023 09:24:32 -0400 AS2 is the most hijacked prefix in the world. Yes UD still owns it, but since different router vendors use different methods of prepending AS numbers, many folks try to prepend twice and end up announcing on AS2.. thanks mike On 8/10/23 9:02 AM, Mark Tinka wrote: > > > On 8/10/23 11:38, Frank Habicht wrote: > > > > > from a 2019 DB snapshot: > > > > aut-num: AS327933 > > as-name: GROUPE-TELECOM-SPRL > > descr: GROUPE TELECOM SPRL > > status: ASSIGNED > > org: ORG-GTS2-AFRINIC > > admin-c: YM8-AFRINIC > > tech-c: YM9-AFRINIC > > notify: ***@gtl-rdcongo.com > > mnt-lower: GTS2-MNT > > mnt-routes: GTS2-MNT > > mnt-by: AFRINIC-HM-MNT > > changed: ***@afrinic.net 20150917 > > source: AFRINIC > > > > I think the most common way to get out of this DB is to not pay something. > > > > I'd guess that > > > > aut-num: AS37451 > > as-name: CongoTelecom > > descr: CONGO TELECOM > > > > has a relationship with them and AS327933 wanted to prepend 2x [1] to their > > sole provider..... (AS37451) > > We are seeing some weird routing from them, and the AS2 they are attached to > (University of Delaware) seems odd. > > Not sure if any of the American folk on this list can verify AS2 is really > part of the University of Delaware... > > Mark. -- Mike Davis Lead Network Architect University of Delaware - 302.831.8756 Newark, DE 19716 Email da...@udel.edu
