nanog mailing list archives
Re: Dodgy AS327933 ...?
From: borg () uu3 net
Date: Fri, 11 Aug 2023 10:15:59 +0200 (CEST)
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 <davis () 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 davis () udel edu
Current thread:
- Dodgy AS327933 ...? Mark Tinka (Aug 10)
- Re: Dodgy AS327933 ...? Frank Habicht (Aug 10)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 10)
- Re: Dodgy AS327933 ...? Frank Habicht (Aug 10)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 10)
- Re: Dodgy AS327933 ...? Mike Davis (Aug 10)
- Re: Dodgy AS327933 ...? borg (Aug 11)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 11)
- Re: Dodgy AS327933 ...? Nick Hilliard (Aug 11)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 11)
- Re: Dodgy AS327933 ...? Nick Hilliard (Aug 11)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 11)
- Re: Dodgy AS327933 ...? Nick Hilliard (Aug 11)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 11)
- Re: Dodgy AS327933 ...? August Yang via NANOG (Aug 11)
- Re: Dodgy AS327933 ...? Mark Tinka (Aug 10)
- Re: Dodgy AS327933 ...? Frank Habicht (Aug 10)
- Re: Dodgy AS327933 ...? Chris Cappuccio (Aug 14)
- Re: Dodgy AS327933 ...? Tom Beecher (Aug 15)