Spoofing Information for AS 262589

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
179.1.77.x/242023-11-26 15:07:33 GMTrewrittenreceived
179.1.85.x/242023-11-15 18:33:33 GMTrewrittenreceived
190.90.100.x/242023-09-12 22:13:27 GMTrewrittenrewritten
190.90.245.x/242023-11-16 17:01:51 GMTblockedblocked

Customers of AS 262589 we have spoofer tests from

This is the list of directly connected customers of AS 262589 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
272137col (Colombia)30AS 272137 testsreceived
28210bra (Brazil)113435AS 28210 testsreceived
267034bra (Brazil)30AS 267034 testsblocked
26619col (Colombia)282AS 26619 testsblocked
8048ven (Venezuela)18923AS 8048 testsblocked
28343bra (Brazil)1544172AS 28343 testsblocked
14259chl (Chile)1714110AS 14259 testsblocked
396356 (MAXIHOST)usa (United States)3297230AS 396356 testsblocked
7303arg (Argentina)7301616AS 7303 testsblocked
13335 (CLOUDFLARENET)bra (Brazil)315352505AS 13335 testsblocked

Address Space Announcement History

The customer cone for 262589 is too large for a prefix list to be useful.

Last Modified