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Spoofing Information for AS 14840

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
186.211.153.x/242024-07-24 19:01:49 GMTreceivedreceived
186.211.154.x/242024-07-24 18:38:40 GMTreceivedreceived
200.143.74.x/242023-10-31 18:32:52 GMTblockedblocked
200.143.85.x/242024-06-18 22:49:41 GMTrewrittenrewritten

Customers of AS 14840 we have spoofer tests from

This is the list of directly connected customers of AS 14840 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
268177bra (Brazil)41AS 268177 testsreceived
268101bra (Brazil)71AS 268101 testsreceived
61592bra (Brazil)13943AS 61592 testsreceived
61906bra (Brazil)20AS 61906 testsblocked
268608bra (Brazil)20AS 268608 testsblocked
269186bra (Brazil)20AS 269186 testsblocked
269223bra (Brazil)20AS 269223 testsblocked
262891bra (Brazil)40AS 262891 testsblocked
268207bra (Brazil)50AS 268207 testsblocked
28606bra (Brazil)103AS 28606 testsblocked
271247bra (Brazil)133AS 271247 testsblocked
262773bra (Brazil)7116AS 262773 testsblocked
13335 (CLOUDFLARENET)tur (Turkey)338622941AS 13335 testsblocked

Address Space Announcement History

The customer cone for 14840 is too large for a prefix list to be useful.

Last Modified