Bogon prefix c0f:f618::/32 announced via Cogent

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1

Hi,

c0f:f618::/32 originated from AS327814 is announcing via Cogent for several
weeks.

I've tried to contact Cogent and AS327814 but didn't receive any reply.

Tue Jul 10 17:52:48.602 UTC
BGP routing table entry for c0f:f618::/32
Versions:
  Process bRIB/RIB SendTblVer
  Speaker 76403269 76403269
    Local Label: 61339
Last Modified: Jul 3 13:31:40.815 for 1w0d
Paths: (1 available, best #1)
  Advertised to peers (in unique update groups):
    38.5.0.99
  Path #1: Received by speaker 0
  Advertised to peers (in unique update groups):
    38.5.0.99
  327814
    2001:550:0:1000::261c:166 (metric 119060) from
2001:550:0:1000::261c:153 (38.28.1.102)
      Origin incomplete, localpref 130, valid, internal, best, group-best
      Received Path ID 0, Local Path ID 0, version 76403269
      Community: 174:11100 174:20999 174:21101 174:22012
      Originator: 38.28.1.102, Cluster list: 38.28.1.83, 38.28.1.67, 38.28.1.92

2

a message of 27 lines which said:

c0f:f618::/32 originated from AS327814 is announcing via Cogent for several
weeks.

Apparently withdrawn 2018-07-14 around 16:00:00 UTC. Your mail to NANOG was
effective :slight_smile:

3

Looks like a typo of 2c0f:f618:

A V Destination P Prf Metric 1 Metric 2 Next hop AS path* ? 2c0f:f618::/32 B 170 150 69040 174 327814 ?
  unverified >fe80::f5c0:800:2

4

I see it right now...