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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
7914342019-11-19 01:52:4431.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7217642019-07-24 21:15:4131.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5040642018-07-18 21:18:2331.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5039562018-07-18 17:38:1231.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5026552018-07-16 14:42:2831.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5021162018-07-15 14:59:4931.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5021132018-07-15 14:53:0231.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5021022018-07-15 14:30:5431.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5020892018-07-15 13:24:0231.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5020832018-07-15 13:04:3331.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4320412018-03-22 13:52:0031.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
4315142018-03-21 18:22:3331.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1716902017-03-25 14:21:1331.133.141.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport

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