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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
17757102024-06-06 17:15:39187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17639192024-05-15 19:04:29187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17635312024-05-15 00:49:26187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17635262024-05-15 00:42:46187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17577682024-05-03 12:27:21187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17522102024-04-22 18:13:30187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17455152024-04-09 10:50:15187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17392852024-03-27 12:08:01187.21.166.x/2428573bra (Brazil)yesunknownunknownnoneReport
17368802024-03-22 12:28:43187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
17368432024-03-22 11:04:09187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
14671652022-10-28 20:36:15187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
14632992022-10-21 20:26:31187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
14631092022-10-21 14:36:30187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
14630942022-10-21 14:12:14187.21.166.x/2428573bra (Brazil)yesrewrittenrewrittennoneReport
14630122022-10-21 11:35:52187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
14504492022-10-03 11:05:06187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport
14433862022-09-19 16:38:26187.21.166.x/2428573bra (Brazil)yesblockedblockednoneReport

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