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Spoofing Information for AS 28126

Spoofing status per IP block (all dates)

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
177.37.129.x/242022-10-30 21:17:08 GMTrewrittenrewritten
177.37.139.x/242019-08-22 13:04:49 GMTblockedreceived
177.37.140.x/242017-03-31 14:28:39 GMTblockedblocked
177.37.156.x/242021-02-13 12:49:17 GMTblockedblocked
177.37.157.x/242021-02-27 23:39:12 GMTblockedblocked
177.37.158.x/242021-02-17 01:40:33 GMTrewrittenreceived
177.37.159.x/242021-01-15 23:21:12 GMTblockedreceived
177.37.165.x/242020-01-10 00:39:28 GMTrewrittenrewritten
177.37.172.x/242021-07-22 20:40:37 GMTrewrittenrewritten
177.37.180.x/242020-02-08 11:41:07 GMTblockedblocked
177.37.181.x/242022-04-21 04:48:55 GMTrewrittenrewritten
177.37.182.x/242021-03-02 18:07:30 GMTblockedblocked
177.37.185.x/242022-08-29 20:43:37 GMTrewrittenrewritten
177.37.192.x/242021-05-27 13:20:47 GMTrewrittenrewritten
177.37.201.x/242022-09-09 05:27:53 GMTrewrittenrewritten
177.37.203.x/242019-10-05 14:18:03 GMTblockedreceived
177.37.206.x/242019-10-03 00:01:34 GMTblockedblocked
177.37.207.x/242023-09-23 19:16:05 GMTrewrittenrewritten
177.37.232.x/242022-08-06 11:48:13 GMTrewrittenrewritten
177.37.233.x/242022-06-28 13:15:12 GMTrewrittenrewritten
177.37.234.x/242022-06-15 11:26:54 GMTrewrittenrewritten
177.37.235.x/242022-08-03 17:10:29 GMTrewrittenrewritten
177.37.236.x/242020-12-01 13:37:07 GMTblockedblocked
177.37.241.x/242023-11-29 01:15:30 GMTrewrittenrewritten
177.37.245.x/242023-02-11 19:16:03 GMTrewrittenrewritten
177.37.248.x/242023-12-11 21:36:15 GMTrewrittenreceived
177.37.250.x/242024-02-26 23:19:15 GMTrewrittenrewritten
177.37.253.x/242022-06-16 17:15:45 GMTblockedblocked
187.19.129.x/242023-01-30 17:16:31 GMTblockedblocked
187.19.131.x/242023-06-04 19:55:30 GMTblockedrewritten
187.19.140.x/242021-02-07 15:00:24 GMTrewrittenrewritten
187.19.149.x/242021-12-07 13:56:21 GMTrewrittenrewritten
187.19.150.x/242019-12-14 13:23:25 GMTrewrittenrewritten
187.19.157.x/242021-02-27 15:20:08 GMTblockedblocked
187.19.164.x/242019-12-20 19:04:49 GMTrewrittenrewritten
187.19.165.x/242021-08-20 18:44:19 GMTrewrittenrewritten
187.19.168.x/242024-02-06 16:25:27 GMTrewrittenrewritten
187.19.184.x/242020-01-13 13:17:09 GMTblockedblocked
187.19.185.x/242023-11-24 13:40:54 GMTblockedblocked
187.19.186.x/242019-11-13 14:46:08 GMTblockedblocked
187.19.187.x/242019-12-14 15:21:26 GMTblockedblocked
187.19.188.x/242019-12-16 18:47:53 GMTblockedblocked
187.19.190.x/242020-01-21 22:14:16 GMTblockedblocked
187.19.191.x/242019-12-17 17:20:25 GMTblockedblocked
187.19.196.x/242023-01-30 17:11:49 GMTrewrittenrewritten
187.19.199.x/242019-12-11 18:42:53 GMTblockedblocked
187.19.201.x/242019-12-15 11:30:14 GMTblockedblocked
187.19.224.x/242022-08-19 07:42:05 GMTrewrittenrewritten
187.19.225.x/242021-04-01 13:38:48 GMTrewrittenrewritten
187.19.226.x/242023-08-02 06:24:49 GMTrewrittenrewritten
187.19.228.x/242020-07-13 04:37:31 GMTrewrittenrewritten
187.19.229.x/242020-10-06 02:01:16 GMTrewrittenrewritten
187.19.231.x/242020-07-12 13:33:17 GMTrewrittenrewritten
187.19.232.x/242022-05-10 18:34:09 GMTrewrittenrewritten
187.19.233.x/242022-04-04 22:33:15 GMTrewrittenrewritten
187.19.234.x/242022-08-07 10:19:04 GMTrewrittenrewritten
187.19.240.x/242024-04-05 01:21:28 GMTrewrittenrewritten
187.19.242.x/242024-02-16 01:14:08 GMTrewrittenrewritten
187.19.244.x/242020-03-26 17:48:13 GMTblockedblocked
187.19.245.x/242020-06-02 02:31:47 GMTrewrittenrewritten
187.19.246.x/242020-04-09 03:14:04 GMTblockedblocked
187.19.247.x/242020-07-06 20:27:11 GMTrewrittenrewritten
187.19.253.x/242019-03-03 07:19:18 GMTblockedreceived
206.42.45.x/242024-04-25 14:15:45 GMTblockedblocked
2804:29b8:50xx::/402024-02-16 01:14:08 GMTblockedblocked
2804:29b8:51xx::/402024-02-26 23:19:15 GMTblockedblocked
2804:29b8:60xx::/402023-01-30 17:16:31 GMTblockedblocked

Customers of AS 28126 we have spoofer tests from

This is the list of directly connected customers of AS 28126 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
53153bra (Brazil)176AS 53153 testsreceived
13335 (CLOUDFLARENET)phl (Philippines)652136420AS 13335 testsreceived
268328bra (Brazil)20AS 268328 testsblocked

Address Space Announcement History

The customer cone for 28126 is too large for a prefix list to be useful.

Last Modified