nanog mailing list archives

Re: IPv4 Subnet 23.151.232.0/24 blackholed?


From: August Yang via NANOG <nanog () nanog org>
Date: Tue, 25 Apr 2023 22:54:06 -0400

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>
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

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