==========[ This trace was taken between "nc -l 8080 < pic.jpg" on 192.168.56.1 and "nc 192.168.56.1 8080 > pic" on 192.168.56.100 at 5% packet loss ]========== Note that the server manages to send 8 segments (1:1025, 1025:2473, ..., 7169:8617) before it sees the first ack for 1025, and 5 more segments (8617:9217, ..., 12713:13313) before it sees another for 2473, and then for 3073 and 4521. By the time the server goes through to the last segment, [FP.], seq 98490:99938, only about a half of them get ack-ed (the next ack is for 47073). Then, importantly, the server keeps re-sending its FIN+ACK, [F.], seq 99938, until the client gets all the segments lost the first time, after they re-transmitted by the server. Only then it acks that FIN+ACK, with [.], ack 99939. The client then sends its own FIN, which the server then acks (two last packets). I inserted empty lines into the tcpdump output where these events happen. bash-3.2# tcpdump -i vboxnet0 -n tcp port 8080 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on vboxnet0, link-type EN10MB (Ethernet), capture size 65535 bytes 09:59:14.484861 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [S], seq 963332345, win 29200, options [mss 1460,sackOK,TS val 94903486 ecr 0,nop,wscale 7], length 0 09:59:14.484936 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [S.], seq 3804482273, ack 963332346, win 65535, options [mss 1460,nop,wscale 5,nop,nop,TS val 969770959 ecr 94903486,sackOK,eol], length 0 09:59:14.485060 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 1, win 229, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485094 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 0 09:59:14.485168 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 1:1025, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1024 09:59:14.485194 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 1025:2473, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485196 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 2473:3073, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485218 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 3073:4521, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485221 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 4521:5121, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485239 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 5121:6569, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485241 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 6569:7169, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485263 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 7169:8617, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485265 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 1025, win 245, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485266 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 8617:9217, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485290 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 9217:10665, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485292 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 10665:11265, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485311 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 11265:12713, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485313 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 12713:13313, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485332 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 2473, win 267, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485342 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 3073, win 290, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485354 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 4521, win 312, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485358 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 13313:14761, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485360 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 14761:16209, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485373 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 16209:17409, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1200 09:59:14.485391 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 5121, win 335, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485395 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 6569, win 358, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485399 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 17409:18857, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485402 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 18857:19457, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485431 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 19457:20905, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485433 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 20905:21505, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485447 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 7169, win 380, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485452 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 21505:22953, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485455 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 22953:23553, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485474 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 8617, win 403, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485479 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 23553:25001, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485481 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 25001:25601, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485492 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 9217, win 426, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485501 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 25601:27049, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485503 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 27049:27649, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485507 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 10665, win 448, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485529 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 27649:29097, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485532 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [P.], seq 29097:29697, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 600 09:59:14.485549 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 29697:31145, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485551 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 31145:32593, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485557 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 11265, win 471, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485580 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 32593:34041, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485595 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 12713, win 493, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485612 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 13313, win 516, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485615 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 34041:35489, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485618 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 35489:36937, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485619 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 14761, win 539, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485625 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 16209, win 561, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485636 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 36937:38385, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485638 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 38385:39833, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485639 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 17409, win 584, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485652 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 39833:41281, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485655 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 41281:42729, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485672 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 42729:44177, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485674 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 44177:45625, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485682 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 18857, win 607, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485691 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 19457, win 629, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485717 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 45625:47073, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485720 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 47073:48521, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485733 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 48521:49969, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485748 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 20905, win 652, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485758 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 21505, win 674, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485777 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 49969:51417, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485780 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 51417:52865, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485793 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 52865:54313, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485811 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 22953, win 697, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485821 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 23553, win 720, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485835 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 54313:55761, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485838 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 55761:57209, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485843 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 25001, win 742, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485851 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 57209:58657, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485869 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 58657:60105, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485872 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 60105:61553, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1448 09:59:14.485875 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 25601, win 765, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485878 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 27049, win 788, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485887 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 27649, win 810, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485894 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 29097, win 833, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485895 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 61553:62786, ack 1, win 4117, options [nop,nop,TS val 969770959 ecr 94903486], length 1233 09:59:14.485906 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 29697, win 855, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485907 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 62786:64234, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485913 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 64234:65682, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485926 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 65682:66882, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1200 09:59:14.485929 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 31145, win 878, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485936 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 66882:68330, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485938 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 32593, win 901, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485943 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 68330:69778, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485952 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 69778:70978, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1200 09:59:14.485961 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 34041, win 923, options [nop,nop,TS val 94903486 ecr 969770959], length 0 09:59:14.485968 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 70978:72426, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485973 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 72426:73874, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485980 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 73874:75322, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485984 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 75322:76770, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485991 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 76770:78218, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.485995 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 78218:79666, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903486], length 1448 09:59:14.486091 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 35489, win 946, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486094 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 36937, win 969, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486096 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 38385, win 991, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486103 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 39833, win 1014, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486109 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 41281, win 1036, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486117 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 79666:81114, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486123 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 81114:82562, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486130 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 82562:84010, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486135 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 84010:85458, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486144 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 85458:86906, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486148 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 86906:88354, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486157 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 88354:89802, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486164 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 89802:91250, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486168 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 42729, win 1059, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486175 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 91250:92698, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486181 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 44177, win 1082, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486182 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 92698:94146, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486194 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 94146:95594, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486201 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 95594:97042, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486204 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 45625, win 1104, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486213 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], seq 97042:98490, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486223 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [FP.], seq 98490:99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 1448 09:59:14.486224 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 47073, win 1127, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486229 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486232 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 48521, win 1145, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486235 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486240 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486243 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 49969, win 1137, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486257 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486264 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 51417, win 1130, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486273 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 52865, win 1122, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486279 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486288 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486296 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 55761, win 1107, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486309 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486311 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 57209, win 1100, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486342 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486396 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 58657, win 1092, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486399 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 60105, win 1085, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486400 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 61553, win 1077, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486418 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 62786, win 1070, options [nop,nop,TS val 94903487 ecr 969770959], length 0 09:59:14.486420 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486426 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 64234, win 1062, options [nop,nop,TS val 94903487 ecr 969770960], length 0 09:59:14.486432 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486432 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 65682, win 1055, options [nop,nop,TS val 94903487 ecr 969770960], length 0 09:59:14.486439 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 66882, win 1047, options [nop,nop,TS val 94903487 ecr 969770960], length 0 09:59:14.486440 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486450 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486457 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486457 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 68330, win 1039, options [nop,nop,TS val 94903487 ecr 969770960], length 0 09:59:14.486464 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486471 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486477 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [F.], seq 99938, ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486611 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486620 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486626 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486649 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], ack 1, win 4117, options [nop,nop,TS val 969770960 ecr 94903487], length 0 09:59:14.486659 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486668 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486676 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486681 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486732 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486735 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486742 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486747 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486752 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486821 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486824 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486825 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.486833 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [.], ack 99939, win 873, options [nop,nop,TS val 94903487 ecr 969770960,nop,nop,sack 1 {99938:99939}], length 0 09:59:14.487082 IP 192.168.56.100.60672 > 192.168.56.1.8080: Flags [F.], seq 1, ack 99939, win 1150, options [nop,nop,TS val 94903487 ecr 969770960], length 0 09:59:14.487108 IP 192.168.56.1.8080 > 192.168.56.100.60672: Flags [.], ack 2, win 4117, options [nop,nop,TS val 969770961 ecr 94903487], length 0