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Spoofing Information for AS 8167

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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
Private		Spoof
Routable
177.201.31.x/242025-02-17 17:12:35 GMTreceivedrewritten
177.201.55.x/242025-10-12 00:47:53 GMTrewrittenrewritten
177.201.122.x/242025-02-18 03:49:04 GMTreceivedblocked
177.201.160.x/242025-11-15 14:21:38 GMTblockedblocked
177.202.179.x/242025-09-15 18:26:21 GMTrewrittenrewritten
177.203.209.x/242025-09-11 23:27:19 GMTrewrittenrewritten
177.203.220.x/242025-07-24 23:15:14 GMTrewrittenrewritten
179.252.29.x/242025-10-17 22:42:06 GMTrewrittenrewritten
187.52.85.x/242025-06-19 15:57:45 GMTblockedblocked
187.53.95.x/242025-01-14 21:57:22 GMTblockedblocked
189.11.105.x/242025-02-25 19:39:08 GMTreceivedblocked
189.11.200.x/242025-03-30 14:03:59 GMTrewrittenrewritten
189.73.255.x/242025-07-11 23:52:10 GMTblockedblocked
191.220.142.x/242025-09-18 23:32:41 GMTrewrittenrewritten
191.221.205.x/242025-04-22 13:29:43 GMTblockedblocked
200.138.95.x/242025-10-29 17:38:13 GMTreceivedrewritten
200.140.201.x/242025-01-10 11:54:33 GMTblockedblocked
200.181.254.x/242025-02-16 06:28:39 GMTreceivedblocked
201.7.23.x/242025-05-18 21:04:54 GMTrewrittenrewritten
201.35.10.x/242025-05-12 02:39:06 GMTrewrittenrewritten
201.67.202.x/242025-06-06 23:29:22 GMTrewrittenrewritten
2804:d55:43xx::/402025-05-12 02:39:06 GMTblockedblocked
2804:d55:44xx::/402025-01-14 21:57:22 GMTblockedblocked
2804:d55:49xx::/402025-09-26 11:55:25 GMTblockedblocked
2804:d55:4bxx::/402025-02-25 19:39:08 GMTblockedblocked
2804:d55:8cxx::/402025-04-22 13:29:43 GMTblockedreceived
2804:d56:12xx::/402025-05-18 21:04:54 GMTrewrittenrewritten
2804:d59:80xx::/402025-02-18 03:49:04 GMTrewrittenrewritten
2804:d59:8axx::/402025-07-24 23:15:14 GMTblockedblocked
2804:d59:91xx::/402025-10-17 22:42:06 GMTblockedblocked
2804:d59:94xx::/402025-07-12 22:11:46 GMTblockedblocked
2804:d59:bcxx::/402025-06-19 15:57:45 GMTblockedreceived

Customers of AS 8167 we have spoofer tests from

This is the list of directly connected customers of AS 8167 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
52564bra (Brazil)3814AS 52564 testsreceived
262663bra (Brazil)10513AS 262663 testsreceived
28146bra (Brazil)832278AS 28146 testsreceived
269180bra (Brazil)41AS 269180 testsblocked
263582bra (Brazil)61AS 263582 testsblocked
53112bra (Brazil)91AS 53112 testsblocked
52771bra (Brazil)2810AS 52771 testsblocked
262907bra (Brazil)945211AS 262907 testsblocked

Address Space Announcement History

The customer cone for 8167 is too large for a prefix list to be useful.

Last Modified