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Spoofing Information for AS 1273 (CW)

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
195.11.29.x/242026-02-12 16:12:00 GMTblockedblocked

Customers of AS 1273 we have spoofer tests from

This is the list of directly connected customers of AS 1273 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
3329 (HOL-GR)grc (Greece)64362AS 3329 testsreceived
9829 (BSNL-NIB)ind (India)4652224AS 9829 testsreceived
51375 (VIVABH)bhr (Bahrain)471738AS 51375 testsreceived
5378gbr (United Kingdom)252AS 5378 testsblocked
15502 (Vodafone-Ireland-ASN)irl (Ireland)325AS 15502 testsblocked
3333 (RIPE-NCC-AS)nld (Netherlands)462AS 3333 testsblocked
12353 (VODAFONE-PT)prt (Portugal)7519AS 12353 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)25141AS 9500 testsblocked
15557 (LDCOMNET)fra (France)50995AS 15557 testsblocked
3209 (VODANET)deu (Germany)778132AS 3209 testsblocked
12874 (FASTWEB)ita (Italy)886224AS 12874 testsblocked
9269 (HKBN-AS-AP)hkg (Hong Kong)1982164AS 9269 testsblocked
29571 (ORANGE-COTE-IVOIRE)civ (Ivory Coast (Cote D'Ivoire))273726AS 29571 testsblocked
16276 (OVH)can (Canada)3716263AS 16276 testsblocked
15924 (BORUSANTELEKOM-AS)tur (Turkey)6354218AS 15924 testsblocked
4775 (GLOBE-TELECOM-AS)phl (Philippines)13067511AS 4775 testsblocked
12389 (ROSTELECOM-AS)rus (Russian Federation)18261321950AS 12389 testsblocked

Address Space Announcement History

The customer cone for 1273 is too large for a prefix list to be useful.

Last Modified