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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
6517942019-03-29 08:09:5331.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4319912018-03-22 12:35:1331.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4314572018-03-21 16:54:2831.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4312612018-03-21 10:49:0231.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4301352018-03-19 16:50:4431.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4294022018-03-18 09:37:0131.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4291992018-03-17 23:33:2631.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
622502016-07-22 08:52:4231.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
619662016-07-19 11:58:5631.133.155.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
618632016-07-18 07:30:4131.133.155.x/2456554 (IETF-MEETING)che (Switzerland)nounknownunknownnoneReport

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