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Spoofing Information for AS 37100 (SEACOM-AS)

Spoofing status per IP block

Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.
IP blockLatest testSpoof
Private
Spoof
Routable
105.16.124.x/242022-03-01 09:02:01 GMTblockedblocked
105.16.164.x/242021-12-06 23:34:41 GMTblockedblocked
105.16.172.x/242021-04-20 02:02:10 GMTblockedblocked
105.16.180.x/242021-01-27 21:47:05 GMTblockedblocked
105.16.188.x/242021-08-08 20:07:15 GMTblockedblocked
105.21.32.x/242018-12-01 05:09:27 GMTblockedreceived
105.22.32.x/242020-03-06 08:25:43 GMTblockedblocked
105.27.98.x/242018-08-20 17:31:11 GMTblockedreceived
105.27.116.x/242019-11-13 09:51:43 GMTrewrittenreceived
105.27.143.x/242022-06-23 08:44:54 GMTblockedblocked
105.27.196.x/242020-03-03 08:08:53 GMTunknownunknown
105.27.201.x/242020-01-31 05:17:29 GMTunknownunknown
105.27.206.x/242022-06-17 17:11:20 GMTblockedreceived
105.27.208.x/242021-08-19 13:32:31 GMTrewrittenblocked
105.27.224.x/242022-09-22 04:38:48 GMTrewrittenblocked
105.27.227.x/242022-09-24 08:06:30 GMTrewrittenreceived
105.27.228.x/242020-05-15 10:42:02 GMTrewrittenrewritten
105.27.240.x/242019-02-20 04:43:51 GMTrewrittenreceived
105.28.32.x/242020-11-07 07:19:17 GMTblockedblocked
105.28.36.x/242017-07-26 06:28:51 GMTblockedreceived
105.28.49.x/242018-09-25 07:04:43 GMTblockedreceived
105.28.96.x/242022-06-07 09:55:49 GMTrewrittenblocked
105.28.114.x/242021-12-06 22:02:05 GMTrewrittenblocked
105.28.119.x/242019-11-12 09:03:42 GMTunknownunknown
105.30.246.x/242020-01-30 08:38:03 GMTrewrittenblocked
105.30.249.x/242022-06-07 15:38:01 GMTblockedblocked
105.31.192.x/242019-08-28 15:02:35 GMTblockedblocked
105.31.193.x/242019-08-28 14:51:14 GMTblockedblocked
105.31.194.x/242018-08-19 16:04:39 GMTblockedblocked
105.31.195.x/242018-08-21 07:16:44 GMTblockedblocked
105.31.223.x/242019-08-27 10:28:09 GMTblockedblocked
2c0f:feb0:xx::/402022-06-17 09:06:38 GMTreceivedreceived

Customers of AS 37100 we have spoofer tests from

This is the list of directly connected customers of AS 37100 from which we have received a spoofer test, ordered by the customer's ability to send spoofed packets and the number of prefixes of an inferred ingress ACL derived from prefix announcements for the customer recorded in public BGP data. BCP-84 describes ingress ACLs as "the most bulletproof solution when done properly" and the "best fit ... when the configuration is not too dynamic, ... if the number of used prefixes is low." Further detail about the size and dynamism of an inferred ACL is available by following the History link for each AS.

ASNCountryNumber of Prefixes
in Customer Cone
Number of ASes
in Customer Cone
Recent
tests
Spoof
Routable
37599 (TERACO)zaf (South Africa)61AS 37599 testsblocked
13150 (CATON)usa (United States)240AS 13150 testsblocked
33771 (SAFARICOM-LIMITED)ken (Kenya)18135AS 33771 testsblocked
13335 (CLOUDFLARENET)mex (Mexico)9358768AS 13335 testsblocked
199524 (GCORE)lux (Luxembourg)100211295AS 199524 testsblocked

Address Space Announcement History

The customer cone for 37100 is too large for a prefix list to be useful.

Last Modified