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Recent tests

Result filters: AS numbers or (partial) names: Country codes: Only show non-remediated spoofing
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.

SessionTimestamp (UTC)Client IP BlockASNCountryNATOutbound
Private
Status
Outbound
Routable
Status
Adj Spoof
Prefix Len
Results
17345952024-03-18 00:23:0231.133.131.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
17345952024-03-18 00:23:022001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
17333642024-03-15 03:00:0331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
17333642024-03-15 03:00:032001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
17333622024-03-15 02:57:0331.130.231.x/2456554 (IETF-MEETING)che (Switzerland)yesrewrittenrewrittennoneReport
17333612024-03-15 02:55:0331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)yesblockedblocked/18Report
17333582024-03-15 02:52:1331.130.224.x/2456554 (IETF-MEETING)che (Switzerland)yesblockedblocked/20Report
16701712023-11-12 08:37:2231.133.150.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16701712023-11-12 08:37:222001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16693842023-11-10 16:52:1031.133.150.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16693842023-11-10 16:52:102001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16693632023-11-10 15:59:5631.133.150.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16693232023-11-10 14:30:0031.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16693232023-11-10 14:30:002001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/72Report
16686352023-11-09 08:16:5531.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16686352023-11-09 08:16:552001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16680792023-11-08 10:03:0331.130.224.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
16680792023-11-08 10:03:032001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16674352023-11-07 06:55:5231.133.157.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/19Report
16673792023-11-07 03:22:5931.133.157.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/22Report
16664682023-11-05 08:55:3031.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16664682023-11-05 08:55:302001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16664662023-11-05 08:46:4231.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16664662023-11-05 08:46:422001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16662372023-11-04 18:27:1931.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16662372023-11-04 18:27:192001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16661592023-11-04 15:39:4731.133.144.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16661592023-11-04 15:39:472001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16660332023-11-04 10:24:5231.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16660332023-11-04 10:24:522001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16660232023-11-04 09:25:4531.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16660232023-11-04 09:25:452001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16660222023-11-04 09:22:4531.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16660222023-11-04 09:22:452001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16660172023-11-04 09:11:3631.130.229.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
16660172023-11-04 09:11:362001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16660162023-11-04 09:11:1831.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16660162023-11-04 09:11:182001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedblocked/48Report
16660152023-11-04 09:09:1431.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16660152023-11-04 09:09:142001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
16660142023-11-04 09:04:1431.130.229.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
16660142023-11-04 09:04:142001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16660122023-11-04 08:47:5631.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16660122023-11-04 08:47:562001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
16660092023-11-04 08:29:5631.130.229.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
16660092023-11-04 08:29:562001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16658192023-11-03 21:51:4931.133.144.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16658192023-11-03 21:51:492001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
16649942023-11-02 13:41:4431.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16649942023-11-02 13:41:442001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16643042023-11-01 08:56:0231.130.224.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
16643042023-11-01 08:56:022001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16638992023-10-31 16:05:3531.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16638992023-10-31 16:05:352001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
16635572023-10-31 01:03:0331.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16635572023-10-31 01:03:032001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16494482023-10-04 14:29:0231.133.159.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16131602023-07-28 00:08:4431.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16131602023-07-28 00:08:442001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16131552023-07-27 23:53:4131.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16131552023-07-27 23:53:412001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16131522023-07-27 23:49:4331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16131522023-07-27 23:49:432001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16129902023-07-27 16:58:2631.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16129902023-07-27 16:58:262001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16125242023-07-26 18:32:1431.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16125242023-07-26 18:32:142001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16121512023-07-26 02:43:5631.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16121512023-07-26 02:43:562001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16113842023-07-24 17:00:2131.130.224.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
16113842023-07-24 17:00:212001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16109302023-07-23 17:06:0431.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16109302023-07-23 17:06:042001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)nounknownunknownnoneReport
16105492023-07-22 17:17:4631.133.162.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16105492023-07-22 17:17:462001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16104492023-07-22 13:45:0931.133.144.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16104492023-07-22 13:45:092001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16100772023-07-21 15:49:332001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16100742023-07-21 15:46:5931.133.158.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16100742023-07-21 15:46:592001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
16095422023-07-20 15:51:2831.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16095422023-07-20 15:51:282001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
16091592023-07-19 20:48:4231.133.158.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16091592023-07-19 20:48:422001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
16090572023-07-19 17:25:1731.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16090572023-07-19 17:25:172001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
16086672023-07-19 01:36:5231.133.158.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16086672023-07-19 01:36:522001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
16084682023-07-18 15:42:5131.133.158.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16084682023-07-18 15:42:512001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
14767862022-11-11 16:16:0831.130.236.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
14753002022-11-09 14:10:0831.130.236.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
14753002022-11-09 14:10:082001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
14751782022-11-09 11:21:1631.130.236.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
14751722022-11-09 11:09:5531.133.150.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14751722022-11-09 11:09:552001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
14716522022-11-05 08:26:5331.130.224.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
14716522022-11-05 08:26:532001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
14697392022-11-02 16:07:0931.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14697372022-11-02 16:06:2631.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14697372022-11-02 16:06:262001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
14696692022-11-02 13:46:5231.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14696692022-11-02 13:46:522001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedreceived/16Report
14689802022-11-01 09:43:3331.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14689802022-11-01 09:43:332001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedreceived/16Report
14689672022-11-01 09:12:2231.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14689672022-11-01 09:12:222001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedreceived/16Report
14103232022-07-31 21:11:3931.133.153.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14103232022-07-31 21:11:392001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
14098012022-07-30 13:22:3731.130.236.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
14066652022-07-24 16:06:512001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
14062272022-07-23 14:35:532001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
14062252022-07-23 14:30:5831.133.136.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
14062252022-07-23 14:30:582001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7942802019-11-23 04:58:1931.130.236.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7942802019-11-23 04:58:192001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noreceivedreceived/16Report
7937182019-11-22 08:20:1131.133.154.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7935942019-11-22 02:15:182001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7922822019-11-20 07:54:102001:67c:3xx::/4056554 (IETF-MEETING)fra (France)noblockedblocked/48Report
7914342019-11-19 01:52:4431.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7914342019-11-19 01:52:442001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7908862019-11-18 10:14:252001:67c:3xx::/4056554 (IETF-MEETING)fra (France)noblockedblocked/48Report
7908812019-11-18 10:00:1731.133.149.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7902152019-11-17 04:53:1231.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7902152019-11-17 04:53:122001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7901962019-11-17 03:21:4131.133.150.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7901962019-11-17 03:21:412001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7901902019-11-17 02:50:0931.133.135.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7901902019-11-17 02:50:092001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7901842019-11-17 02:35:3531.133.135.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7901842019-11-17 02:35:352001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7901762019-11-17 01:57:5231.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7901762019-11-17 01:57:522001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7896812019-11-16 02:20:2531.133.147.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/19Report
7896812019-11-16 02:20:252001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7221752019-07-25 15:00:522001:67c:12xx::/4056554 (IETF-MEETING)zaf (South Africa)noblockedblocked/48Report
7217642019-07-24 21:15:4131.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7217642019-07-24 21:15:412001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
7217022019-07-24 18:56:0731.133.139.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7217022019-07-24 18:56:072001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
7216802019-07-24 18:18:352001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7216232019-07-24 16:52:0231.130.224.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/20Report
7216232019-07-24 16:52:022001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7214402019-07-24 11:10:5031.133.157.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7214402019-07-24 11:10:502001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7211912019-07-23 23:57:1531.133.147.x/2456554 (IETF-MEETING)che (Switzerland)nounknownunknownnoneReport
7208512019-07-23 14:02:2931.133.152.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7208512019-07-23 14:02:292001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7204032019-07-22 20:40:1631.133.139.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7204032019-07-22 20:40:162001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
7203672019-07-22 19:39:1331.133.139.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7202782019-07-22 17:00:252001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7202272019-07-22 15:42:2931.133.131.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7202272019-07-22 15:42:292001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
7197652019-07-21 19:54:5131.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7197652019-07-21 19:54:512001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/96Report
7196622019-07-21 14:52:412001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7196602019-07-21 14:43:4431.133.129.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7196602019-07-21 14:43:442001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
7196392019-07-21 13:50:0831.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7196392019-07-21 13:50:082001:67c:3xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/56Report
7195512019-07-21 10:14:5431.133.153.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7195512019-07-21 10:14:542001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7194062019-07-21 03:55:5631.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7193992019-07-21 03:25:3231.133.152.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7193992019-07-21 03:25:322001:67c:12xx::/4056554 (IETF-MEETING)che (Switzerland)noblockedblocked/48Report
7193122019-07-20 22:03:2031.133.153.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
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