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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
17927352024-07-07 09:10:46145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17873052024-06-27 08:40:40145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17810152024-06-16 09:16:12145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17793492024-06-13 09:00:10145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17754372024-06-06 07:53:09145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17693122024-05-26 08:16:32145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17677622024-05-23 09:24:26145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17641592024-05-16 08:17:23145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17562482024-04-30 07:41:35145.103.245.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17562332024-04-30 06:31:20145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17536262024-04-25 09:09:06145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17536152024-04-25 08:46:52145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17536122024-04-25 08:34:39145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17466842024-04-11 09:31:25145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17430622024-04-04 08:15:55145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17377842024-03-24 11:24:00145.103.245.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17363062024-03-21 10:41:56145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17329162024-03-14 09:35:29145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17273032024-03-03 10:06:09145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17258532024-02-29 09:37:17145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17210492024-02-20 08:17:46145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17210152024-02-20 06:27:17145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17168752024-02-11 09:54:23145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17158692024-02-09 07:32:25145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17154362024-02-08 11:19:41145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17117452024-02-01 09:12:27145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17111342024-01-31 07:32:48145.33.121.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17102552024-01-29 15:05:32145.89.110.x/241103 (SURFNET-NL)nld (Netherlands)noblockedblockednoneReport
17101432024-01-29 10:59:00145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17101122024-01-29 10:12:41145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17100762024-01-29 09:04:20145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17100702024-01-29 08:57:53145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17087432024-01-26 12:06:10145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17087342024-01-26 11:41:50145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17086852024-01-26 09:31:21145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17077782024-01-24 17:05:20145.90.231.x/241103 (SURFNET-NL)nld (Netherlands)noblockedblockednoneReport
17077782024-01-24 17:05:202001:610:4xx::/401103 (SURFNET-NL)nld (Netherlands)noblockedblockednoneReport
17070232024-01-23 07:58:18145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17064972024-01-22 08:27:36145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17049402024-01-18 14:09:34145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17048882024-01-18 12:44:39145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17043152024-01-17 12:21:22145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17026052024-01-14 09:04:59145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17015992024-01-12 09:11:45145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
17010712024-01-11 09:42:25145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
17004612024-01-10 08:49:59145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16998652024-01-09 10:31:51145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16998322024-01-09 08:57:28145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16909272023-12-21 09:43:30145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16891632023-12-18 07:55:22145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16887942023-12-17 10:31:33145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16872672023-12-14 11:00:48145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16835562023-12-07 09:53:53145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16831452023-12-06 15:17:56145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16830902023-12-06 13:57:51145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16830282023-12-06 12:25:06145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16824272023-12-05 15:03:14145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16823962023-12-05 14:02:21145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)nounknownunknownnoneReport
16823572023-12-05 12:59:30145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16816962023-12-04 09:09:06145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16803422023-12-01 09:58:53145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16803052023-12-01 07:48:27145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16798092023-11-30 10:02:33145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16797972023-11-30 09:40:14145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16792962023-11-29 11:26:41145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16761852023-11-23 11:57:19145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16739062023-11-19 15:21:23145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16738412023-11-19 12:31:07145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16702492023-11-12 13:57:55145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16687762023-11-09 14:05:15145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16686832023-11-09 10:24:32145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16649162023-11-02 09:17:15145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16616982023-10-27 11:14:15145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16579462023-10-20 11:45:08145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16579282023-10-20 11:08:14145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16542052023-10-13 11:02:40145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16537562023-10-12 11:38:11145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16537492023-10-12 11:28:57145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16536972023-10-12 09:20:33145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16498492023-10-05 10:09:01145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16498152023-10-05 08:58:58145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16498112023-10-05 08:41:45145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16453752023-09-26 14:12:22145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16446922023-09-25 09:39:28145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16442822023-09-24 08:46:58145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16425932023-09-21 08:51:23145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16414762023-09-19 12:35:01145.33.101.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16375702023-09-12 11:02:09145.37.235.x/241103 (SURFNET-NL)nld (Netherlands)yesunknownunknownnoneReport
16365432023-09-10 08:45:58145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16351742023-09-07 09:46:38145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16344802023-09-06 01:48:08145.90.222.x/241103 (SURFNET-NL)nld (Netherlands)noblockedblocked/19Report
16315172023-08-31 08:39:51145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16255412023-08-20 10:35:24145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16213282023-08-12 15:15:19145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16213212023-08-12 14:52:33145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16212222023-08-12 10:35:42145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16194522023-08-09 08:09:27145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16194452023-08-09 07:58:50145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16107972023-07-23 08:26:37145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16049602023-07-12 06:54:22145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport
16049562023-07-12 06:44:40145.103.249.x/241103 (SURFNET-NL)nld (Netherlands)yesrewrittenrewrittennoneReport

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