Нашел tcpdump для винды, вот вывод проги при обращение к веб-серверу по внешнему IP: 1. Комп с которого идет запрос (работает на винде): 000000 IP 192.168.1.171.52209 > 91.227.95.24.8080: S 4162502288:4162502288(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 250726 IP 192.168.1.171.52210 > 91.227.95.24.8080: S 2560808312:2560808312(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 2. 749843 IP 192.168.1.171.52209 > 91.227.95.24.8080: S 4162502288:4162502288(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 251958 IP 192.168.1.171.52210 > 91.227.95.24.8080: S 2560808312:2560808312(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 5. 744146 IP 192.168.1.171.52209 > 91.227.95.24.8080: S 4162502288:4162502288(0) win 8192 <mss 1460,nop,nop,sackOK> 249993 IP 192.168.1.171.52210 > 91.227.95.24.8080: S 2560808312:2560808312(0) win 8192 <mss 1460,nop,nop,sackOK> 11. 757747 IP 192.168.1.171.52211 > 91.227.95.24.8080: S 3096735177:3096735177(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 251014 IP 192.168.1.171.52212 > 91.227.95.24.8080: S 2540840159:2540840159(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 000795 IP 192.168.1.171.52213 > 91.227.95.24.8080: S 3781299161:3781299161(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 2. 739697 IP 192.168.1.171.52211 > 91.227.95.24.8080: S 3096735177:3096735177(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 262017 IP 192.168.1.171.52213 > 91.227.95.24.8080: S 3781299161:3781299161(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 000043 IP 192.168.1.171.52212 > 91.227.95.24.8080: S 2540840159:2540840159(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 5. 742030 IP 192.168.1.171.52211 > 91.227.95.24.8080: S 3096735177:3096735177(0) win 8192 <mss 1460,nop,nop,sackOK> 262030 IP 192.168.1.171.52213 > 91.227.95.24.8080: S 3781299161:3781299161(0) win 8192 <mss 1460,nop,nop,sackOK> 000042 IP 192.168.1.171.52212 > 91.227.95.24.8080: S 2540840159:2540840159(0) win 8192 <mss 1460,nop,nop,sackOK> 12. 003833 IP 192.168.1.171.52214 > 91.227.95.24.8080: S 3929762644:3929762644(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 3. 008365 IP 192.168.1.171.52214 > 91.227.95.24.8080: S 3929762644:3929762644(0) win 8192 <mss 1460,nop,wscale 2,nop,nop,sackOK> 5. 992110 IP 192.168.1.171.52214 > 91.227.95.24.8080: S 3929762644:3929762644(0) win 8192 <mss 1460,nop,nop,sackOK> 2. Вывод tcpdump с шлюза: 00:00:00.000000 IP 192.168.1.171.52209 > 91.227.95.24.8080: Flags [S], seq 4162502288, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:00.250509 IP 192.168.1.171.52210 > 91.227.95.24.8080: Flags [S], seq 2560808312, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:02.749777 IP 192.168.1.171.52209 > 91.227.95.24.8080: Flags [S], seq 4162502288, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:00.251945 IP 192.168.1.171.52210 > 91.227.95.24.8080: Flags [S], seq 2560808312, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:05.743990 IP 192.168.1.171.52209 > 91.227.95.24.8080: Flags [S], seq 4162502288, win 8192, options [mss 1460,nop,nop,sackOK], length 0 00:00:00.249989 IP 192.168.1.171.52210 > 91.227.95.24.8080: Flags [S], seq 2560808312, win 8192, options [mss 1460,nop,nop,sackOK], length 0 00:00:11.757429 IP 192.168.1.171.52211 > 91.227.95.24.8080: Flags [S], seq 3096735177, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:00.251008 IP 192.168.1.171.52212 > 91.227.95.24.8080: Flags [S], seq 2540840159, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:00.000787 IP 192.168.1.171.52213 > 91.227.95.24.8080: Flags [S], seq 3781299161, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:02.739629 IP 192.168.1.171.52211 > 91.227.95.24.8080: Flags [S], seq 3096735177, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:00.262016 IP 192.168.1.171.52213 > 91.227.95.24.8080: Flags [S], seq 3781299161, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:00.000160 IP 192.168.1.171.52212 > 91.227.95.24.8080: Flags [S], seq 2540840159, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:05.741753 IP 192.168.1.171.52211 > 91.227.95.24.8080: Flags [S], seq 3096735177, win 8192, options [mss 1460,nop,nop,sackOK], length 0 00:00:00.262025 IP 192.168.1.171.52213 > 91.227.95.24.8080: Flags [S], seq 3781299161, win 8192, options [mss 1460,nop,nop,sackOK], length 0 00:00:00.000139 IP 192.168.1.171.52212 > 91.227.95.24.8080: Flags [S], seq 2540840159, win 8192, options [mss 1460,nop,nop,sackOK], length 0 00:00:12.003414 IP 192.168.1.171.52214 > 91.227.95.24.8080: Flags [S], seq 3929762644, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:03.008284 IP 192.168.1.171.52214 > 91.227.95.24.8080: Flags [S], seq 3929762644, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0 00:00:05.991950 IP 192.168.1.171.52214 > 91.227.95.24.8080: Flags [S], seq 3929762644, win 8192, options [mss 1460,nop,nop,sackOK], length 03. На веб-сервере тишина. Если переходить на веб-сервер с инета или же с локальной сети, но указав при этом локальный адрес веб-сервера, то веб-сервере идет соответствующий вывод tcpdump, о том что к нему приходят пакеты.
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