[NLNOG] [SUSPICIOUS] KPN doesn't seem to pick up new routes from AS31383

Verschuren, Antoin averschuren at libertyglobal.com
Thu Jan 25 09:46:32 CET 2024

Hi Bart,

I don't see any export statements in your AS31383 aut-num object, so when upstreams filter using IRR data, how are they to know that you announce AS31383 to your upstreams?

aut-num:        AS31383
as-name:        NEDERLANDNET-AS
member-of:      AS-COMPUTEL
org:            ORG-CSB1-RIPE
remarks:        www.computel.nl
admin-c:        CH784-RIPE
tech-c:         CH784-RIPE
status:         ASSIGNED
mnt-by:         COMPUTEL-MNT
mnt-by:         RIPE-NCC-END-MNT
remarks:        E-mail is the preferred contact method
remarks:        Please use one of the following addresses
remarks:        abuse at computel.nl - for abuse notificion
remarks:        noc at computel.nl - for operational questions
remarks:        peering at computel.nl - for peering questions
created:        2004-04-29T11:01:05Z
last-modified:  2024-01-19T12:47:55Z
source:         RIPE # Filtered

You should add import/export statements to your 5 upstream ASNs:

import:         from ASXXX accept XXX
export:         to ASXXX announce AS31383

If you want to announce more than your own ASN, create an AS-SET to announce.

Kind regards,

Antoin Verschuren
Senior Manager Network Security

M  + 31 6 15682664

Liberty Global Technology Services B.V.
Boeing Avenue 53
1119 PE Schiphol-Rijk
The Netherlands

-----Original Message-----
From: NLNOG <nlnog-bounces at nlnog.net> On Behalf Of Bart van Dam | Computel Standby via NLNOG
Sent: Wednesday 24 January 2024 17:39
To: nlnog at nlnog.net
Subject: [SUSPICIOUS] [NLNOG] KPN doesn't seem to pick up new routes from AS31383

Good evening,

We're currently making changes to our route announcements to migrate ranges to a new datacenter.
We created the new route objects a couple days ago in the RIPE database and started announcing a test range yesterday evening.

To specify, we are AS31383, we announce on our current BGP routers and started announcing on our new ones in the other datacenter.
The problem we ran into is that it looks like KPN isn't picking up the new route, other big providers like VodafoneZiggo or Odido seem to work just fine.

I was wondering if there is anyone on this mailing list able to help or shed some light on our current situation.
Any help or information would be greatly appreciated.

With kind regards,

Bart van Dam
Computel Stand-by B.V.

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