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Spoofing Information for AS 4134 (CHINANET-BACKBONE)

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 block
Latest test
Spoof
Private
Spoof
Routable
14.145.30.x/242025-03-30 13:54:52 GMTrewrittenrewritten
240e:649:78xx::/402025-03-28 05:59:10 GMTblockedblocked
42.92.160.x/242025-03-28 00:54:28 GMTblockedblocked
240e:335:2xx::/402025-03-28 00:54:28 GMTblockedreceived
58.48.224.x/242025-03-27 07:28:52 GMTrewrittenrewritten
240e:36c:dxx::/402025-03-27 07:28:52 GMTrewrittenrewritten
42.92.164.x/242025-03-27 00:53:59 GMTblockedblocked
14.145.15.x/242025-03-26 16:15:53 GMTrewrittenrewritten
42.92.161.x/242025-03-26 08:16:55 GMTblockedblocked
240e:436:cexx::/402025-03-26 08:16:55 GMTblockedblocked
42.92.162.x/242025-03-26 00:52:32 GMTblockedblocked
240e:3bb:6xx::/402025-03-25 15:36:06 GMTrewrittenrewritten
14.23.109.x/242025-03-25 13:09:18 GMTrewrittenrewritten
42.92.167.x/242025-03-25 01:02:46 GMTblockedblocked
14.145.80.x/242025-03-22 16:44:40 GMTblockedblocked
61.178.103.x/242025-03-21 03:06:08 GMTblockedblocked
42.92.165.x/242025-03-21 00:54:48 GMTblockedblocked
14.145.77.x/242025-03-20 16:27:11 GMTblockedblocked
42.92.166.x/242025-03-20 00:58:25 GMTblockedblocked
14.145.78.x/242025-03-16 11:50:06 GMTblockedblocked
14.145.35.x/242025-03-15 13:50:47 GMTblockedblocked
49.87.172.x/242025-03-13 19:27:13 GMTblockedblocked
125.106.14.x/242025-03-13 18:34:44 GMTblockedblocked
14.145.79.x/242025-03-13 17:11:28 GMTblockedblocked
60.184.246.x/242025-03-13 15:52:13 GMTblockedblocked
183.166.171.x/242025-03-13 15:41:39 GMTblockedblocked
119.41.206.x/242025-03-13 15:39:48 GMTblockedblocked
114.223.181.x/242025-03-13 15:28:28 GMTblockedblocked
117.69.155.x/242025-03-13 15:25:26 GMTblockedblocked
125.92.100.x/242025-03-13 15:19:24 GMTblockedblocked
117.90.145.x/242025-03-13 15:05:52 GMTblockedblocked
58.52.80.x/242025-03-13 14:55:16 GMTblockedblocked
121.61.160.x/242025-03-13 14:45:53 GMTblockedblocked
183.166.137.x/242025-03-13 14:36:29 GMTblockedblocked
115.221.246.x/242025-03-13 14:36:15 GMTblockedblocked
218.20.124.x/242025-03-13 14:26:33 GMTblockedblocked
218.19.169.x/242025-03-13 14:14:24 GMTblockedblocked
116.22.75.x/242025-03-13 14:03:31 GMTblockedblocked
117.69.190.x/242025-03-13 14:00:32 GMTblockedblocked
49.87.198.x/242025-03-13 13:08:22 GMTblockedblocked
182.204.177.x/242025-03-13 12:41:13 GMTblockedblocked
218.86.73.x/242025-03-13 12:30:49 GMTblockedblocked
218.88.4.x/242025-03-13 11:13:16 GMTblockedblocked
115.229.220.x/242025-03-13 10:52:11 GMTblockedblocked
117.69.159.x/242025-03-13 10:21:16 GMTblockedblocked
117.69.188.x/242025-03-13 09:37:09 GMTblockedblocked
36.6.57.x/242025-03-13 08:47:13 GMTblockedblocked
117.92.77.x/242025-03-13 08:11:56 GMTblockedblocked
220.178.132.x/242025-03-13 08:00:17 GMTblockedblocked
117.65.111.x/242025-03-13 07:50:57 GMTblockedblocked
118.112.64.x/242025-03-13 07:40:21 GMTblockedblocked
121.233.159.x/242025-03-13 07:30:19 GMTblockedblocked
117.60.123.x/242025-03-13 07:19:10 GMTblockedblocked
114.104.134.x/242025-03-13 07:08:51 GMTblockedblocked
110.82.165.x/242025-03-13 07:07:42 GMTblockedblocked
183.166.146.x/242025-03-13 06:59:24 GMTblockedblocked
110.82.167.x/242025-03-13 06:58:40 GMTblockedblocked
121.205.230.x/242025-03-13 06:42:07 GMTblockedblocked
14.153.193.x/242025-03-13 06:38:06 GMTblockedblocked
59.60.120.x/242025-03-13 05:15:29 GMTblockedblocked
114.104.227.x/242025-03-13 00:19:46 GMTblockedblocked
183.166.136.x/242025-03-12 23:42:21 GMTblockedblocked
117.69.189.x/242025-03-12 22:47:30 GMTblockedblocked
183.166.148.x/242025-03-12 19:47:20 GMTblockedblocked
180.102.167.x/242025-03-12 12:22:48 GMTblockedblocked
182.132.24.x/242025-03-12 11:06:45 GMTblockedblocked
61.188.233.x/242025-03-12 09:47:20 GMTblockedblocked
118.120.231.x/242025-03-12 08:33:20 GMTblockedblocked
182.132.25.x/242025-03-12 08:11:48 GMTblockedblocked
123.52.208.x/242025-03-11 03:36:53 GMTrewrittenrewritten
240e:33d:54xx::/402025-03-11 03:36:53 GMTreceivedreceived
42.92.163.x/242025-03-10 01:04:36 GMTblockedblocked
123.52.218.x/242025-03-09 10:09:51 GMTrewrittenrewritten
14.145.57.x/242025-03-09 07:40:16 GMTrewrittenrewritten
14.145.46.x/242025-03-05 13:59:21 GMTrewrittenrewritten
240e:390:8xx::/402025-03-02 08:20:09 GMTblockedblocked
171.14.81.x/242025-03-01 12:14:54 GMTrewrittenrewritten
27.226.134.x/242025-03-01 07:32:53 GMTrewrittenrewritten
14.145.31.x/242025-02-28 14:07:32 GMTrewrittenrewritten
123.52.217.x/242025-02-27 08:30:55 GMTrewrittenrewritten
119.103.138.x/242025-02-25 13:31:46 GMTrewrittenrewritten
240e:47c:6xx::/402025-02-25 09:21:13 GMTblockedblocked
115.193.186.x/242025-02-25 05:03:06 GMTrewrittenrewritten
123.52.216.x/242025-02-21 07:44:39 GMTrewrittenrewritten
119.103.149.x/242025-02-20 13:22:49 GMTrewrittenrewritten
115.193.160.x/242025-02-20 06:55:54 GMTrewrittenrewritten
171.14.80.x/242025-02-19 15:41:26 GMTrewrittenrewritten
14.145.62.x/242025-02-19 14:04:44 GMTblockedblocked
115.193.174.x/242025-02-17 14:15:45 GMTrewrittenrewritten
27.226.129.x/242025-02-15 14:22:21 GMTrewrittenrewritten
240e:305:18xx::/402025-02-15 04:38:01 GMTblockedblocked
240e:45e:1xx::/402025-02-15 01:39:42 GMTrewrittenrewritten
58.60.63.x/242025-02-14 11:33:41 GMTblockedblocked
36.1.80.x/242025-02-10 01:58:43 GMTblockedblocked
27.226.130.x/242025-02-02 14:31:48 GMTrewrittenrewritten
14.145.44.x/242025-02-01 04:40:14 GMTrewrittenrewritten
14.145.84.x/242025-01-24 16:00:47 GMTblockedblocked
58.48.227.x/242025-01-24 02:57:43 GMTrewrittenrewritten
115.205.68.x/242025-01-23 09:16:40 GMTrewrittenrewritten
123.52.209.x/242025-01-19 19:02:42 GMTrewrittenrewritten
58.48.226.x/242025-01-17 06:53:51 GMTrewrittenrewritten
183.128.166.x/242025-01-13 13:45:40 GMTrewrittenrewritten
123.52.219.x/242025-01-13 01:34:19 GMTrewrittenrewritten
219.140.43.x/242025-01-09 02:12:42 GMTrewrittenrewritten
240e:47e:6xx::/402025-01-02 08:25:39 GMTblockedblocked
27.226.132.x/242025-01-01 11:33:06 GMTrewrittenrewritten
240e:404:79xx::/402024-12-28 08:55:53 GMTblockedblocked
240e:404:7axx::/402024-12-28 07:06:10 GMTblockedblocked
111.172.7.x/242024-12-27 06:37:46 GMTrewrittenrewritten
42.88.254.x/242024-12-23 08:58:26 GMTblockedblocked
42.88.33.x/242024-12-23 02:52:12 GMTblockedblocked
42.88.129.x/242024-12-23 00:57:35 GMTblockedblocked
240e:404:6exx::/402024-12-21 10:03:10 GMTblockedblocked
219.140.42.x/242024-12-20 10:55:37 GMTrewrittenrewritten
240e:440:32xx::/402024-12-18 08:40:44 GMTblockedblocked
171.82.59.x/242024-12-13 03:30:52 GMTblockedblocked
115.193.189.x/242024-12-09 13:29:20 GMTrewrittenrewritten
240e:404:6dxx::/402024-12-08 05:09:13 GMTblockedblocked
219.140.40.x/242024-12-06 08:07:56 GMTblockedblocked
180.136.210.x/242024-12-03 07:30:12 GMTblockedblocked
115.193.168.x/242024-11-30 04:20:43 GMTrewrittenrewritten
14.145.8.x/242024-11-29 18:23:11 GMTrewrittenrewritten
183.128.160.x/242024-11-28 13:33:15 GMTrewrittenrewritten
125.75.59.x/242024-11-27 08:00:34 GMTblockedblocked
219.140.41.x/242024-11-26 14:26:28 GMTblockedblocked
122.234.59.x/242024-11-25 13:57:01 GMTrewrittenrewritten
14.145.7.x/242024-11-23 17:21:32 GMTrewrittenrewritten
42.88.41.x/242024-11-20 04:21:23 GMTblockedblocked
240e:437:d6xx::/402024-11-20 04:21:23 GMTblockedblocked
111.172.5.x/242024-11-19 00:19:59 GMTrewrittenrewritten
240e:437:d0xx::/402024-11-18 07:13:32 GMTblockedblocked
42.88.106.x/242024-11-13 08:24:51 GMTblockedblocked
240e:437:c6xx::/402024-11-13 08:24:51 GMTblockedblocked
42.88.36.x/242024-11-12 02:08:37 GMTblockedblocked
61.178.106.x/242024-11-12 01:31:33 GMTblockedblocked
14.145.51.x/242024-11-11 14:54:40 GMTrewrittenrewritten
27.226.133.x/242024-11-10 00:05:34 GMTrewrittenrewritten
58.48.225.x/242024-11-07 11:20:23 GMTrewrittenrewritten
171.82.58.x/242024-11-07 08:26:44 GMTrewrittenrewritten
183.128.143.x/242024-10-20 14:34:28 GMTrewrittenrewritten
119.103.139.x/242024-10-12 06:41:57 GMTblockedblocked
42.88.124.x/242024-10-12 03:22:34 GMTblockedblocked
61.178.179.x/242024-10-10 23:40:04 GMTblockedblocked
42.88.147.x/242024-10-08 07:16:52 GMTblockedblocked
240e:436:c6xx::/402024-10-08 07:16:52 GMTblockedblocked
27.226.131.x/242024-09-30 09:12:41 GMTrewrittenrewritten
14.145.6.x/242024-09-24 15:29:29 GMTrewrittenrewritten
42.88.56.x/242024-09-21 05:55:06 GMTblockedblocked
240e:436:dexx::/402024-09-21 05:55:06 GMTblockedblocked
42.88.3.x/242024-09-21 05:43:50 GMTrewrittenrewritten
220.173.185.x/242024-09-19 14:27:12 GMTrewrittenrewritten
116.253.194.x/242024-09-16 14:38:21 GMTrewrittenrewritten
118.182.78.x/242024-09-13 00:17:55 GMTblockedblocked
42.88.176.x/242024-09-12 08:24:49 GMTblockedblocked
240e:437:dexx::/402024-09-12 08:24:49 GMTblockedblocked
116.7.245.x/242024-09-02 04:51:48 GMTblockedblocked
115.193.169.x/242024-08-31 02:44:24 GMTrewrittenrewritten
60.187.172.x/242024-08-29 13:20:09 GMTrewrittenrewritten
222.78.60.x/242024-08-23 10:44:11 GMTrewrittenrewritten
115.224.249.x/242024-08-22 11:27:20 GMTrewrittenrewritten
115.224.245.x/242024-08-21 10:02:22 GMTrewrittenrewritten
42.88.57.x/242024-08-16 11:48:26 GMTblockedblocked
115.193.170.x/242024-08-13 03:44:49 GMTrewrittenrewritten
240e:335:4cxx::/402024-08-04 00:53:48 GMTblockedblocked
240e:437:cexx::/402024-08-01 06:00:33 GMTblockedblocked
113.65.13.x/242024-07-31 08:34:28 GMTblockedblocked
113.77.81.x/242024-07-28 09:41:02 GMTrewrittenrewritten
14.145.56.x/242024-07-27 01:56:34 GMTrewrittenrewritten
14.26.235.x/242024-07-24 06:36:12 GMTblockedblocked
240e:47e:2xx::/402024-07-24 06:36:12 GMTblockedblocked
240e:435:cexx::/402024-07-16 03:09:40 GMTblockedblocked
42.88.103.x/242024-07-16 02:36:03 GMTblockedblocked
42.88.92.x/242024-07-16 02:19:21 GMTblockedblocked
14.120.123.x/242024-07-12 10:48:06 GMTrewrittenrewritten
42.88.144.x/242024-07-11 06:43:44 GMTblockedblocked
111.172.4.x/242024-07-10 12:32:24 GMTrewrittenrewritten
14.145.40.x/242024-07-06 05:32:40 GMTrewrittenrewritten
42.88.222.x/242024-07-04 05:28:20 GMTblockedblocked
240e:437:dbxx::/402024-07-04 05:28:20 GMTblockedblocked
14.145.42.x/242024-06-29 04:26:40 GMTrewrittenrewritten
240e:435:dexx::/402024-06-26 07:41:15 GMTblockedblocked
42.88.202.x/242024-06-25 00:34:46 GMTblockedblocked
42.88.249.x/242024-06-20 08:04:14 GMTblockedblocked
42.88.248.x/242024-06-19 09:51:00 GMTblockedblocked
240e:45f:1xx::/402024-06-13 06:26:25 GMTblockedblocked
14.145.58.x/242024-06-09 05:02:26 GMTrewrittenrewritten
42.88.152.x/242024-06-08 23:07:59 GMTblockedblocked
42.88.67.x/242024-06-08 06:11:06 GMTblockedblocked
222.244.224.x/242024-06-05 07:02:09 GMTblockedblocked
222.244.226.x/242024-05-29 05:56:11 GMTblockedblocked
111.172.6.x/242024-05-27 14:34:27 GMTrewrittenrewritten
240e:436:d8xx::/402024-05-24 07:30:36 GMTblockedblocked
240e:437:d8xx::/402024-05-24 04:44:19 GMTblockedblocked
42.88.115.x/242024-05-23 05:25:05 GMTblockedblocked
42.88.34.x/242024-05-22 12:38:03 GMTblockedblocked
222.240.114.x/242024-05-22 04:50:15 GMTblockedblocked
115.193.188.x/242024-05-21 08:11:52 GMTrewrittenrewritten
42.88.166.x/242024-05-21 04:14:09 GMTblockedblocked
42.88.108.x/242024-05-20 03:00:03 GMTblockedblocked
218.75.150.x/242024-05-19 03:47:00 GMTrewrittenblocked
14.145.27.x/242024-05-08 12:21:54 GMTrewrittenrewritten
111.176.110.x/242024-04-21 05:38:09 GMTrewrittenrewritten
240e:369:88xx::/402024-04-21 05:38:09 GMTblockedblocked
14.145.10.x/242024-04-13 12:05:15 GMTblockedblocked

Customers of AS 4134 we have spoofer tests from

This is the list of directly connected customers of AS 4134 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
Recent
tests
Spoof
Routable
4538 (ERX-CERNET-BKB)chn (China)124028AS 4538 testsreceived
36678 (CTUSA)usa (United States)131AS 36678 testsblocked
4847 (CNIX-AP)chn (China)286497AS 4847 testsblocked
9808 (CMNET-GD)chn (China)4245183AS 9808 testsblocked
4809 (CHINATELECOM-CORE-WAN-CN2)chn (China)10231428AS 4809 testsblocked
4837 (CHINA169-Backbone)chn (China)23612982AS 4837 testsblocked

Address Space Announcement History

The customer cone for 4134 is too large for a prefix list to be useful.

Last Modified 03/31/2025 02:31:53