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Spoofing Information for AS 4637 (ASN-TELSTRA-GLOBAL)

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
134.159.14.x/242024-11-21 10:38:56 GMTreceivedreceived

Customers of AS 4637 we have spoofer tests from

This is the list of directly connected customers of AS 4637 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
40676 (AS40676)usa (United States)4330252AS 40676 testsreceived
14593 (SPACEX-STARLINK)usa (United States)1882AS 14593 testsblocked
14061 (DIGITALOCEAN-ASN)aus (Australia)2042AS 14061 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)50446AS 9500 testsblocked
16276 (OVH)fra (France)57066AS 16276 testsblocked
9269 (HKBN-AS-AP)hkg (Hong Kong)1468107AS 9269 testsblocked
199524 (GCORE)lux (Luxembourg)2895205AS 199524 testsblocked
20473 (AS-CHOOPA)usa (United States)61851156AS 20473 testsblocked
16509 (AMAZON-02)usa (United States)689542AS 16509 testsblocked
18403 (FPT-AS-AP)vnm (Vietnam)8672979AS 18403 testsblocked
4809 (CHINATELECOM-CORE-WAN-CN2)chn (China)11897421AS 4809 testsblocked
60068 (CDN77)deu (Germany)16096725AS 60068 testsblocked
13335 (CLOUDFLARENET)vnm (Vietnam)274992131AS 13335 testsblocked
4657 (STARHUB-INTERNET)sgp (Singapore)345292077AS 4657 testsblocked
1221 (ASN-TELSTRA)aus (Australia)578733325AS 1221 testsblocked

Address Space Announcement History

The customer cone for 4637 is too large for a prefix list to be useful.

Last Modified