Spoofing Information for AS 21574

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| Data: Stats Summary Recent Tests Remediation Results by AS Results by Country Results by Provider |

Spoofing status per IP block for last year of data

No spoofing data found for ASN 21574

Customers of AS 21574 we have spoofer tests from

This is the list of directly connected customers of AS 21574 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
262663	bra (Brazil)	59	10	AS 262663 tests	received
262306	bra (Brazil)	2	0	AS 262306 tests	blocked
28296	bra (Brazil)	9	1	AS 28296 tests	blocked
13335 (CLOUDFLARENET)	kaz (Kazakhstan)	114583	10709	AS 13335 tests	blocked

Address Space Announcement History

The customer cone for 21574 is too large for a prefix list to be useful.

Last Modified