Spoofing Information for AS 22381

Spoofing status per IP block for last year of data

(Results for all dates also available.)

No spoofing data found for ASN 22381

Customers of AS 22381 we have spoofer tests from

This is the list of directly connected customers of AS 22381 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.

ASN	Country	Number of Prefixes in Customer Cone	Number of ASes in Customer Cone	Recent tests	Spoof Routable
28210	bra (Brazil)	152	23	AS 28210 tests	received
263357	bra (Brazil)	2	0	AS 263357 tests	blocked
274549	usa (United States)	2	0	AS 274549 tests	blocked
28254	bra (Brazil)	3	0	AS 28254 tests	blocked
262908	bra (Brazil)	5	0	AS 262908 tests	blocked
268207	bra (Brazil)	9	2	AS 268207 tests	blocked
28209	bra (Brazil)	10	3	AS 28209 tests	blocked
273517	bra (Brazil)	21	7	AS 273517 tests	blocked
28343	bra (Brazil)	601	166	AS 28343 tests	blocked
53062	bra (Brazil)	3963	1242	AS 53062 tests	blocked

Address Space Announcement History

The customer cone for 22381 is too large for a prefix list to be useful.