IPv4 Subnet 23.151.232.0/24 blackholed?

Wed Apr 26 11:33:16 UTC 2023

We are able to see your range from Cogent and Hurricane Electric now. Just took time

Routes 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 at nanog.org> On Behalf Of August Yang via NANOG
Sent: Tuesday, April 25, 2023 9:54 PM
To: Ryan Hamel <ryan at rkhtech.org>; Neel Chauhan <neel at neelc.org>; nanog at 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 at neelc.org><mailto:neel at neelc.org>
To nanog at nanog.org<mailto:nanog at 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
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