Spoofer Report for NANOG for Apr 2021

Sat May 8 17:00:05 UTC 2021

In response to feedback from operational security communities,
CAIDA's source address validation measurement project
(https://spoofer.caida.org) is automatically generating monthly
reports of ASes originating prefixes in BGP for systems from which
we received packets with a spoofed source address.
We are publishing these reports to network and security operations
lists in order to ensure this information reaches operational
contacts in these ASes.

This report summarises tests conducted within usa, can.

Inferred improvements during Apr 2021:
ASN    Name                                           Fixed-By
53356  FREE RANGE CLOUD                               2021-04-15
20150  ANYNODE                                        2021-04-28

Further information for the inferred remediation is available at:
https://spoofer.caida.org/remedy.php

Source Address Validation issues inferred during Apr 2021:
ASN    Name                           First-Spoofed Last-Spoofed
209    CENTURYLINK-US-LEGACY-QWEST       2016-08-16   2021-04-20
40676  AS40676                           2016-08-29   2021-04-04
6128   CABLE-NET-1                       2016-09-03   2021-04-13
20412  CLARITY-TELECOM                   2016-09-30   2021-04-30
6181   FUSE-NET                          2016-10-10   2021-04-29
11427  TWC-11427-TEXAS                   2016-10-21   2021-04-30
30036  MEDIACOM-ENTERPRISE-BUSINESS      2016-11-16   2021-04-13
22898  ATLINK                            2016-12-16   2021-04-30
63296  AWBROADBAND                       2017-09-01   2021-04-28
546    PARSONS-PGS-1                     2017-11-20   2021-04-12
12222  AKAMAI                            2018-02-14   2021-04-23
393564 SPOKANE                           2018-06-05   2021-04-06
33452  RW                                2018-09-19   2021-04-30
20448  VPNTRANET-LLC                     2018-09-20   2021-04-29
5078   ONENET-AS-1                       2020-04-06   2021-04-21
6391   URBAN-15                          2020-05-29   2021-04-28
208188 PUGET-SOUND-NETWORKS              2020-12-04   2021-04-24

Further information for these tests where we received spoofed
packets is available at:
https://spoofer.caida.org/recent_tests.php?country_include=usa,can&no_block=1

Please send any feedback or suggestions to spoofer-info at caida.org