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Spoofing Information for AS 37100 (SEACOM-AS)

Spoofing status per IP block for last year of data

(Results for all dates also available.)
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
105.29.166.x/242025-01-21 12:31:16 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 the latest month of 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
36908 (VTL-ASN)tza (Tanzania)3616AS 36908 testsreceived
328977ken (Kenya)112AS 328977 testsblocked
328366 (FirstnetTechnology-AS)zaf (South Africa)164AS 328366 testsblocked
32437 (edgeconnect-legacy)zaf (South Africa)166AS 32437 testsblocked
327849 (ROCKETNET)zaf (South Africa)254AS 327849 testsblocked
36926 (CKL1-ASN)ken (Kenya)46380AS 36926 testsblocked
36868 (EIS)mus (Mauritius)121636AS 36868 testsblocked
37084 (simbanet-tz)tza (Tanzania)167454AS 37084 testsblocked
23889 (MauritiusTelecom)mus (Mauritius)264246AS 23889 testsblocked
60171 (AFRIX-AS)esp (Spain)3985199AS 60171 testsblocked
199524 (GCORE)rou (Romania)69871090AS 199524 testsblocked
13335 (CLOUDFLARENET)tur (Turkey)11139112078AS 13335 testsblocked

Address Space Announcement History

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

Last Modified