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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
1163742016-12-22 23:31:3189.176.178.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
1150572016-12-20 20:33:54185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesunknownunknownnoneReport
1147552016-12-20 11:16:44194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1147552016-12-20 11:16:442a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
1136992016-12-18 12:17:02178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
1102742016-12-13 14:00:59185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesunknownunknownnoneReport
1100902016-12-13 07:02:38194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1100902016-12-13 07:02:382a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
1056092016-12-06 11:48:46185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1053192016-12-05 22:54:01194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1053192016-12-05 22:54:012a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
1011052016-11-29 10:23:22185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1008002016-11-28 21:38:17194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1008002016-11-28 21:38:172a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
980272016-11-24 00:34:39188.175.178.x/2416246 (AS16246)cze (Czech Republic)yesrewrittenblockednoneReport
944592016-11-18 12:00:25185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
943442016-11-18 07:29:00185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
929552016-11-16 16:11:09185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
878352016-11-09 19:19:31194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
878352016-11-09 19:19:312a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
868332016-11-07 18:36:56194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
868332016-11-07 18:36:562a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
862322016-11-05 23:16:1062.84.135.x/245588 (GTSCE)cze (Czech Republic)yesrewrittenrewrittennoneReport
843622016-10-31 17:21:19194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
843622016-10-31 17:21:192a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
827752016-10-27 09:57:47188.175.226.x/2416246 (AS16246)cze (Czech Republic)noblockedblockednoneReport
776732016-10-12 10:31:18185.15.146.x/2444489 (Starnet)cze (Czech Republic)yesrewrittenrewrittennoneReport
760182016-10-07 07:08:3094.142.238.x/2448926 (PE3NY-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
736192016-09-29 11:42:5791.197.234.x/2460144 (THREE-W-INFRA-AS)cze (Czech Republic)noblockedblocked/26Report
734892016-09-28 21:45:0091.197.234.x/2460144 (THREE-W-INFRA-AS)cze (Czech Republic)noreceivedreceived/8Report
734832016-09-28 21:31:4391.197.234.x/2460144 (THREE-W-INFRA-AS)cze (Czech Republic)noreceivedreceived/8Report
726192016-09-26 18:25:13178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
715252016-09-23 08:26:0878.128.217.x/242852 (CESNET2)cze (Czech Republic)noblockedblocked/25Report
715252016-09-23 08:26:082001:718:xx::/402852 (CESNET2)cze (Czech Republic)noblockedblockednoneReport
706732016-09-19 14:43:0678.102.106.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
706372016-09-19 11:40:4080.250.11.x/2421430 (WIA-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
704742016-09-18 12:39:3689.177.99.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
697962016-09-15 08:12:5580.250.11.x/2421430 (WIA-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
686982016-09-09 19:24:0190.179.101.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
686982016-09-09 19:24:012a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
675282016-09-02 08:52:4980.251.250.x/2439235 (DAT-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
673712016-09-01 10:26:2480.251.249.x/2439235 (DAT-AS)cze (Czech Republic)yesunknownunknownnoneReport
669272016-08-28 16:59:0190.179.101.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
669272016-08-28 16:59:012a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
667782016-08-27 16:31:3990.179.101.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
667782016-08-27 16:31:392a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
667282016-08-27 11:15:132a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
665762016-08-26 08:34:142a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
664382016-08-25 08:53:20178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
660372016-08-22 10:04:06178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
654312016-08-18 04:11:2795.168.214.x/2439392 (SuperNetwork)cze (Czech Republic)noreceivedreceived/8Report
652212016-08-16 14:41:032a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
652152016-08-16 14:06:2890.179.101.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
652152016-08-16 14:06:282a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
650942016-08-15 18:05:53178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
648192016-08-13 13:33:43178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
648022016-08-13 10:26:08178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
633952016-07-31 23:21:37178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
624902016-07-24 22:08:01178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
623462016-07-23 03:38:07178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
618612016-07-18 06:22:2595.168.214.x/2439392 (SuperNetwork)cze (Czech Republic)noblockedblocked/27Report
618242016-07-17 20:54:43178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
611592016-07-10 20:43:13178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
611532016-07-10 19:44:2889.238.186.x/249009 (M247)cze (Czech Republic)yesunknownunknownnoneReport
606252016-07-04 17:59:03178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
563982016-05-04 11:34:1537.46.83.x/24198171 (Hosting90)cze (Czech Republic)noblockedblockednoneReport

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