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
134.159.14.x/242023-12-05 01:29:54 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
14061 (DIGITALOCEAN-ASN)usa (United States)2032AS 14061 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)21138AS 9500 testsblocked
16276 (OVH)fra (France)55931AS 16276 testsblocked
54825 (PACKET)nld (Netherlands)92228AS 54825 testsblocked
16509 (AMAZON-02)aus (Australia)56919AS 16509 testsblocked
7552 (VIETEL-AS-AP)vnm (Vietnam)5913539AS 7552 testsblocked
9009 (M247)usa (United States)6596272AS 9009 testsblocked
20473 (AS-CHOOPA)mex (Mexico)7171691AS 20473 testsblocked
3786 (LGDACOM)kor (South Korea)7498530AS 3786 testsblocked
4809 (CHINATELECOM-CORE-WAN-CN2)chn (China)20188774AS 4809 testsblocked
13335 (CLOUDFLARENET)bra (Brazil)293392579AS 13335 testsblocked
1221 (ASN-TELSTRA)aus (Australia)351552247AS 1221 testsblocked
9498 (BBIL-AP)ind (India)13717614098AS 9498 testsblocked

Address Space Announcement History

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

Last Modified