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Spoofing Information for AS 58453 (CMI-INT-HK)

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 block
Latest test
Spoof
Private
Spoof
Routable
223.118.51.x/242025-02-06 17:11:06 GMTblockedblocked

Customers of AS 58453 we have spoofer tests from

This is the list of directly connected customers of AS 58453 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
213347 (AS_IRAY)hkg (Hong Kong)20AS 213347 testsreceived
329411mus (Mauritius)20AS 329411 testsreceived
4538 (ERX-CERNET-BKB)chn (China)124028AS 4538 testsreceived
54801 (JCM54801)sgp (Singapore)741AS 54801 testsblocked
45102 (CNNIC-ALIBABA-US-NET-AP)usa (United States)4584AS 45102 testsblocked
9808 (CMNET-GD)chn (China)4245183AS 9808 testsblocked
138915 (KAOPU-HK)usa (United States)7917821AS 138915 testsblocked
17639 (CONVERGE-AS)phl (Philippines)252731177AS 17639 testsblocked

Address Space Announcement History

The customer cone for 58453 is too large for a prefix list to be useful.

Last Modified 03/14/2025 05:06:48