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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
7902152019-11-17 04:53:1231.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7197652019-07-21 19:54:5131.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
7196392019-07-21 13:50:0831.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6500052019-03-26 13:25:5831.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6499232019-03-26 10:37:5631.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6498682019-03-26 08:16:3031.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6491902019-03-25 08:07:2631.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6487742019-03-24 12:53:3331.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6487292019-03-24 10:45:0931.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
6487082019-03-24 09:57:5531.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5675902018-11-08 05:57:4231.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5675462018-11-08 04:20:5531.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5656522018-11-05 03:22:3131.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
5656122018-11-05 01:04:3731.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
2759172017-07-18 07:39:4831.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1745782017-03-28 21:41:1231.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1745022017-03-28 19:12:5731.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1743502017-03-28 15:34:0031.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1738762017-03-28 02:32:2931.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1737492017-03-27 22:17:4831.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1735652017-03-27 18:01:4131.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1734252017-03-27 15:06:5931.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport
1734032017-03-27 14:44:1931.133.137.x/2456554 (IETF-MEETING)che (Switzerland)noblockedblockednoneReport

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