|Spoof status key|
|received||Spoofed packet was received.||✔||Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.|
|rewritten||Spoofed packet was received, but the source address was changed en route.|
|blocked||Spoofed packet was not received, but unspoofed packet was.|
|unknown||Neither spoofed nor unspoofed packet was received.|
|IP block||Latest test||Spoof|
|207.235.139.x/24||2023-10-11 19:03:47 GMT||rewritten||received|
This is the list of directly connected customers of AS 6461 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
|20119 (ARROW)||can (Canada)||235||30||AS 20119 tests||received||4637 (ASN-TELSTRA-GLOBAL)||hkg (Hong Kong)||129433||11275||AS 4637 tests||received||10745 (ARIN-ASH-CHA)||usa (United States)||4||0||AS 10745 tests||blocked||12876 (AS12876)||fra (France)||11||0||AS 12876 tests||blocked||8399 (SEWAN-FR)||fra (France)||30||0||AS 8399 tests||blocked||19165 (WEBPASS)||usa (United States)||43||1||AS 19165 tests||blocked||21928 (T-MOBILE-AS21928)||usa (United States)||45||2||AS 21928 tests||blocked||5645 (TEKSAVVY)||can (Canada)||76||11||AS 5645 tests||blocked||13285 (OPALTELECOM-AS)||gbr (United Kingdom)||118||15||AS 13285 tests||blocked||803 (SASKTEL)||can (Canada)||153||22||AS 803 tests||blocked||14265 (US-TELEPACIFIC)||usa (United States)||408||42||AS 14265 tests||blocked||13213 (UK2NET-AS)||gbr (United Kingdom)||496||8||AS 13213 tests||blocked||28118||dom (Dominican Republic)||1066||9||AS 28118 tests||blocked||3737 (AS-PTD)||usa (United States)||2890||378||AS 3737 tests||blocked||7029 (WINDSTREAM)||usa (United States)||4582||642||AS 7029 tests||blocked||21859 (ZEN-ECN)||idn (Indonesia)||10865||676||AS 21859 tests||blocked||812 (ROGERS-COMMUNICATIONS)||can (Canada)||26256||1268||AS 812 tests||blocked||9498 (BBIL-AP)||ind (India)||137176||14098||AS 9498 tests||blocked|
The customer cone for 6461 is too large for a prefix list to be useful.