... 10 :52:59. 312 500 IP (tos 0x0, ttl 12 8, id 399, offset 0, flags [DF], proto: TCP (6 ), length: 44) 19 2 .16 8 .11 1.23.80 > 19 2 .16 8 .11 1 .17 .37644: S, cksum 0x7 913 (correct), 16 8534 510 1 :16 8534 510 1(0 ) ack 2 010 644898 ... 10 :52:59.296875 IP (tos 0x0, ttl 12 8, id 11 0, offset 0, flags [none], proto: TCP(6), length: 40) 19 2 .16 8 .11 1 .17 .37644 > 19 2 .16 8 .11 1.23. 21: R, cksum 0xca50 (correct), 2 010 644898:2 010 64489 8(0 ) ... IP (tos 0x0, ttl 12 8, id 11 1, offset 0, flags [none], proto: TCP(6), length: 40) 19 2 .16 8 .11 1 .17 .37644 > 19 2 .16 8 .11 1.23.80: R, cksum 0xca15 (correct), 2 010 644898:2 010 64489 8(0 ) win 0 0x0000:...