nanog mailing list archives
Re: IPv4 Subnet 23.151.232.0/24 blackholed?
From: Mark Tinka <mark@tinka.africa>
Date: Wed, 26 Apr 2023 14:54:23 +0200
You're welcome to use our looking glasses which over Europe and Africa: https://as37100.net/ But so far, we are seeing this in AMS: BGP routing table entry for 23.151.232.0/24, version 2411923092 Paths: (2 available, best #2, table default) Not advertised to any peer Refresh Epoch 1 37100 3257 23470 23470 23470 23470 105.26.64.17 from 105.26.64.17 (105.16.0.131) Origin IGP, metric 0, localpref 100, valid, external Community: 37100:1 37100:13 path 211B5070 RPKI State not found rx pathid: 0, tx pathid: 0 Refresh Epoch 1 37100 3257 23470 23470 23470 23470 105.26.64.1 from 105.26.64.1 (105.16.0.131) Origin IGP, metric 0, localpref 100, valid, external, best Community: 37100:1 37100:13 path 211B6A5C RPKI State not found rx pathid: 0, tx pathid: 0x0 And in JNB: BGP routing table entry for 23.151.232.0/24, version 1526622268 Paths: (2 available, best #2, table default) Not advertised to any peer Refresh Epoch 1 37100 3257 23470 23470 23470 23470 105.22.32.1 from 105.22.32.1 (105.16.0.163) Origin IGP, metric 0, localpref 100, valid, external Community: 37100:1 37100:13 path 44E5427C RPKI State not found rx pathid: 0, tx pathid: 0 Refresh Epoch 1 37100 3257 23470 23470 23470 23470 105.22.40.1 from 105.22.40.1 (105.16.0.162) Origin IGP, metric 0, localpref 100, valid, external, best Community: 37100:1 37100:13 path 44E60E94 RPKI State not found rx pathid: 0, tx pathid: 0x0 Mark. On 4/26/23 13:33, Travis Garrison wrote:
We are able to see your range from Cogent and Hurricane Electric now. Just took timeRoutes For: 23.151.232.0/24 Timestamp: 2023-04-26 11:27:07 UTC - Prefix: 23.151.232.0/24 - RPKI State: Not Verified - AS Path: 6939 → 23470 → 23470 → 23470 → 23470 - Next Hop: 184.105.58.113 - Weight: 170 - Local Preference: 100 - MED: 0 - Communities: - Originator: - Peer: 216.218.253.50 - Age: 6 hours (Wed, 26 Apr 2023 05:01:41 UTC) - Prefix: 23.151.232.0/24 - RPKI State: Not Verified - AS Path: 6939 → 23470 → 23470 → 23470 → 23470 - Next Hop: 184.105.92.241 - Weight: 170 - Local Preference: 100 - MED: 0 - Communities: - Originator: - Peer: 100.78.0.6 - Age: 6 hours (Wed, 26 Apr 2023 05:01:39 UTC) - Prefix: 23.151.232.0/24 - RPKI State: Not Verified - AS Path: 174 → 3257 → 23470 → 23470 → 23470 → 23470 - Next Hop: 38.140.137.161 - Weight: 170 - Local Preference: 100 - MED: 10020 - Communities: - 174:21000 - 174:22013 - Originator: - Peer: 66.28.1.16 - Age: 3 hours (Wed, 26 Apr 2023 08:57:05 UTC) Thanks Travis*From:* NANOG <nanog-bounces+tgarrison=netviscom.com () nanog org> *On Behalf Of *August Yang via NANOG*Sent:* Tuesday, April 25, 2023 9:54 PM*To:* Ryan Hamel <ryan () rkhtech org>; Neel Chauhan <neel () neelc org>; nanog () nanog org*Subject:* Re: IPv4 Subnet 23.151.232.0/24 blackholed?The range has only been announced for 2 hours. Just wait longer for filters to refresh as Ryan advised.On 2023-04-25 10:49 p.m., Ryan Hamel wrote: Neel, Carriers rebuild their prefixes lists once or twice in a 24 hour period. Considering that you just got the block today and is in ReliableSite's AS-SET, you just got to be patient. Having announcements propagated immediately either sounds like it happened a day after you gave them the LOA, or they have unfiltered transit circuits, which is worrisome. Ryan ------ Original Message ------ From "Neel Chauhan" <neel () neelc org> <mailto:neel () neelc org> To nanog () nanog org Date 4/25/2023 7:35:40 PM Subject IPv4 Subnet 23.151.232.0/24 blackholed? Hi, I recently got the IPv4 allocation 23.151.232.0/24 from ARIN. I also had my hosting company ReliableSite announce it to the internet. Right now, I can only access networks that peer with ReliableSite via internet exchanges, such as Google, CloudFlare, OVH, Hurricane Electric, et al. It seems the Tier 1 ISPs (e.g. Lumen, Cogent, AT&T, et al.) are blackholing the IPv4 subnet 23.151.232.0/24. Could someone who works at a Tier 1 NOC please check and remove the blackhole if any exists? Normally when ReliableSite announced my prior (then-leased) IPv4 space it gets propagated via BGP almost immediately. This time it's not going through at all. Best, Neel Chauhan -- Best regards August Yang
Current thread:
- IPv4 Subnet 23.151.232.0/24 blackholed? Neel Chauhan (Apr 25)
- Re: IPv4 Subnet 23.151.232.0/24 blackholed? Ryan Hamel (Apr 25)
- Re: IPv4 Subnet 23.151.232.0/24 blackholed? August Yang via NANOG (Apr 25)
- RE: IPv4 Subnet 23.151.232.0/24 blackholed? Travis Garrison (Apr 26)
- Re: IPv4 Subnet 23.151.232.0/24 blackholed? Mark Tinka (Apr 26)
- RE: IPv4 Subnet 23.151.232.0/24 blackholed? Jon Lewis (Apr 26)
- Re: IPv4 Subnet 23.151.232.0/24 blackholed? August Yang via NANOG (Apr 25)
- Re: IPv4 Subnet 23.151.232.0/24 blackholed? Ryan Hamel (Apr 25)
- Re: IPv4 Subnet 23.151.232.0/24 blackholed? Jon Lewis (Apr 25)