|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|
|175.45.85.x/24||2023-11-24 06:52:17 GMT||rewritten||✔||blocked|
This is the list of directly connected customers of AS 4826 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
|147020 (CYWORLD-AS-AP)||aus (Australia)||4||1||AS 147020 tests||blocked||10214 (PENTANET-AS-AP)||aus (Australia)||21||1||AS 10214 tests||blocked||4851 (HOSTNETWORKS-AS-AU-AP)||aus (Australia)||36||7||AS 4851 tests||blocked||14593 (SPACEX-STARLINK)||esp (Spain)||122||1||AS 14593 tests||blocked||14061 (DIGITALOCEAN-ASN)||usa (United States)||203||2||AS 14061 tests||blocked||9500 (VODAFONE-TRANSIT-AS)||nzl (New Zealand)||211||38||AS 9500 tests||blocked||8075 (MICROSOFT-CORP-MSN-AS-BLOCK)||usa (United States)||598||7||AS 8075 tests||blocked||4764 (WIDEBAND-AS-AP)||aus (Australia)||618||137||AS 4764 tests||blocked||31898 (ORACLE-BMC-31898)||bra (Brazil)||861||22||AS 31898 tests||blocked||54825 (PACKET)||nld (Netherlands)||922||28||AS 54825 tests||blocked||38195 (SUPERLOOP-AS-AP)||aus (Australia)||2894||300||AS 38195 tests||blocked||9790 (VOCUSGROUPNZ)||nzl (New Zealand)||4283||409||AS 9790 tests||blocked||396356 (MAXIHOST)||usa (United States)||6299||310||AS 396356 tests||blocked||9009 (M247)||usa (United States)||6596||272||AS 9009 tests||blocked||20473 (AS-CHOOPA)||mex (Mexico)||7171||691||AS 20473 tests||blocked||21859 (ZEN-ECN)||idn (Indonesia)||10865||676||AS 21859 tests||blocked||8220 (COLT)||esp (Spain)||18587||1700||AS 8220 tests||blocked||13335 (CLOUDFLARENET)||bra (Brazil)||29339||2579||AS 13335 tests||blocked||1221 (ASN-TELSTRA)||aus (Australia)||35155||2247||AS 1221 tests||blocked|
The customer cone for 4826 is too large for a prefix list to be useful.