Spoofing Information for AS 4826 (VOCUS-BACKBONE-AS)

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
175.45.85.x/242023-11-24 06:52:17 GMTrewrittenblocked

Customers of AS 4826 we have spoofer tests from

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.

ASNCountryNumber of Prefixes
in Customer Cone
Number of ASes
in Customer Cone
147020 (CYWORLD-AS-AP)aus (Australia)41AS 147020 testsblocked
10214 (PENTANET-AS-AP)aus (Australia)211AS 10214 testsblocked
4851 (HOSTNETWORKS-AS-AU-AP)aus (Australia)367AS 4851 testsblocked
14593 (SPACEX-STARLINK)esp (Spain)1221AS 14593 testsblocked
14061 (DIGITALOCEAN-ASN)usa (United States)2032AS 14061 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)21138AS 9500 testsblocked
8075 (MICROSOFT-CORP-MSN-AS-BLOCK)usa (United States)5987AS 8075 testsblocked
4764 (WIDEBAND-AS-AP)aus (Australia)618137AS 4764 testsblocked
31898 (ORACLE-BMC-31898)bra (Brazil)86122AS 31898 testsblocked
54825 (PACKET)nld (Netherlands)92228AS 54825 testsblocked
38195 (SUPERLOOP-AS-AP)aus (Australia)2894300AS 38195 testsblocked
9790 (VOCUSGROUPNZ)nzl (New Zealand)4283409AS 9790 testsblocked
396356 (MAXIHOST)usa (United States)6299310AS 396356 testsblocked
9009 (M247)usa (United States)6596272AS 9009 testsblocked
20473 (AS-CHOOPA)mex (Mexico)7171691AS 20473 testsblocked
21859 (ZEN-ECN)idn (Indonesia)10865676AS 21859 testsblocked
8220 (COLT)esp (Spain)185871700AS 8220 testsblocked
13335 (CLOUDFLARENET)bra (Brazil)293392579AS 13335 testsblocked
1221 (ASN-TELSTRA)aus (Australia)351552247AS 1221 testsblocked

Address Space Announcement History

The customer cone for 4826 is too large for a prefix list to be useful.

Last Modified