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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
16131602023-07-28 00:08:4431.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
7194062019-07-21 03:55:5631.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
6499752019-03-26 12:14:4931.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
6499162019-03-26 10:28:4131.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
6483502019-03-23 14:29:4331.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
6483382019-03-23 13:42:2231.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
6482852019-03-23 11:04:5731.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
5016052018-07-14 13:36:4031.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
4294252018-03-18 10:35:0831.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
3549082017-11-16 09:19:1631.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/22Report
3524532017-11-13 00:11:5931.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
1744582017-03-28 18:08:3931.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
1728262017-03-26 21:28:4731.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
1728212017-03-26 21:22:1631.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
904632016-11-13 04:17:1331.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
900082016-11-12 12:34:4031.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report
900042016-11-12 12:23:5131.133.146.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblocked/18Report

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