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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
17333642024-03-15 03:00:0331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
17333612024-03-15 02:55:0331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)yesblockedblocked/18Report
16131522023-07-27 23:49:4331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16129902023-07-27 16:58:2631.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
16095422023-07-20 15:51:2831.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
14697372022-11-02 16:06:2631.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4998772018-07-11 12:26:4931.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4304902018-03-20 08:06:4931.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4301742018-03-19 17:41:2031.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4299042018-03-19 09:56:3031.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4294202018-03-18 10:25:0631.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4291022018-03-17 19:12:4031.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4288712018-03-17 10:45:1631.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4288482018-03-17 09:41:4531.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4288472018-03-17 09:41:4531.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4288432018-03-17 09:27:1531.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3554142017-11-17 02:59:0231.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3549042017-11-16 09:15:3131.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3547962017-11-16 05:19:4331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3547852017-11-16 04:54:4331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3547122017-11-16 01:36:1131.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3541952017-11-15 11:41:5931.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3541792017-11-15 11:27:5331.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
3515812017-11-11 09:12:1431.133.128.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport

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