Code:
12:13:43.594248 IP (tos 0x0, ttl 64, id 46607, offset 0, flags [DF], proto TCP (6), length 215)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x5ab1 (correct), seq 4329:4492, ack 1, win 92, options [nop,nop,TS val 18338002 ecr 18339749], length 163
12:13:43.594306 IP (tos 0x0, ttl 64, id 8327, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x8de8 (correct), seq 1, ack 4492, win 1002, options [nop,nop,TS val 18346855 ecr 18338002], length 0
12:13:43.594899 IP (tos 0x0, ttl 64, id 46608, offset 0, flags [DF], proto TCP (6), length 159)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x5fc2 (correct), seq 4492:4599, ack 1, win 92, options [nop,nop,TS val 18338002 ecr 18346855], length 107
12:13:43.595002 IP (tos 0x0, ttl 64, id 8328, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x8d7d (correct), seq 1, ack 4599, win 1002, options [nop,nop,TS val 18346855 ecr 18338002], length 0
12:13:43.597161 IP (tos 0x0, ttl 64, id 46609, offset 0, flags [DF], proto TCP (6), length 129)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x7f11 (correct), seq 4599:4676, ack 1, win 92, options [nop,nop,TS val 18338003 ecr 18346855], length 77
12:13:43.597176 IP (tos 0x0, ttl 64, id 8329, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x8d2e (correct), seq 1, ack 4676, win 1002, options [nop,nop,TS val 18346856 ecr 18338003], length 0
12:13:43.598580 IP (tos 0x0, ttl 64, id 46610, offset 0, flags [DF], proto TCP (6), length 238)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x4dde (correct), seq 4676:4862, ack 1, win 92, options [nop,nop,TS val 18338003 ecr 18346856], length 186
12:13:43.598592 IP (tos 0x0, ttl 64, id 8330, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x8c74 (correct), seq 1, ack 4862, win 1002, options [nop,nop,TS val 18346856 ecr 18338003], length 0
12:13:45.662280 IP (tos 0x0, ttl 64, id 46611, offset 0, flags [DF], proto TCP (6), length 238)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x411f (correct), seq 4862:5048, ack 1, win 92, options [nop,nop,TS val 18338519 ecr 18346856], length 186
12:13:45.662303 IP (tos 0x0, ttl 64, id 8331, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x87b2 (correct), seq 1, ack 5048, win 1002, options [nop,nop,TS val 18347372 ecr 18338519], length 0
12:13:45.663207 IP (tos 0x0, ttl 64, id 46612, offset 0, flags [DF], proto TCP (6), length 428)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xcca6 (correct), seq 5048:5424, ack 1, win 92, options [nop,nop,TS val 18338519 ecr 18347372], length 376
12:13:45.663226 IP (tos 0x0, ttl 64, id 8332, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x8639 (correct), seq 1, ack 5424, win 1002, options [nop,nop,TS val 18347373 ecr 18338519], length 0
12:13:46.674674 IP (tos 0x0, ttl 64, id 46613, offset 0, flags [DF], proto TCP (6), length 184)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xa4fe (correct), seq 5424:5556, ack 1, win 92, options [nop,nop,TS val 18338772 ecr 18347373], length 132
12:13:46.674702 IP (tos 0x0, ttl 64, id 8333, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x83bc (correct), seq 1, ack 5556, win 1002, options [nop,nop,TS val 18347625 ecr 18338772], length 0
12:13:46.675642 IP (tos 0x0, ttl 64, id 46614, offset 0, flags [DF], proto TCP (6), length 379)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xa29c (correct), seq 5556:5883, ack 1, win 92, options [nop,nop,TS val 18338773 ecr 18347625], length 327
12:13:46.675656 IP (tos 0x0, ttl 64, id 8334, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x8273 (correct), seq 1, ack 5883, win 1002, options [nop,nop,TS val 18347626 ecr 18338773], length 0
12:13:46.677196 IP (tos 0x0, ttl 64, id 46615, offset 0, flags [DF], proto TCP (6), length 262)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x164d (correct), seq 5883:6093, ack 1, win 92, options [nop,nop,TS val 18338773 ecr 18347626], length 210
12:13:46.677210 IP (tos 0x0, ttl 64, id 8335, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x81a1 (correct), seq 1, ack 6093, win 1002, options [nop,nop,TS val 18347626 ecr 18338773], length 0
12:13:46.678210 IP (tos 0x0, ttl 64, id 46616, offset 0, flags [DF], proto TCP (6), length 346)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xd0e2 (correct), seq 6093:6387, ack 1, win 92, options [nop,nop,TS val 18338773 ecr 18347626], length 294
12:13:46.678223 IP (tos 0x0, ttl 64, id 8336, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x807b (correct), seq 1, ack 6387, win 1002, options [nop,nop,TS val 18347626 ecr 18338773], length 0
12:13:47.684720 IP (tos 0x0, ttl 64, id 46617, offset 0, flags [DF], proto TCP (6), length 162)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xb162 (correct), seq 6387:6497, ack 1, win 92, options [nop,nop,TS val 18339025 ecr 18347626], length 110
12:13:47.684744 IP (tos 0x0, ttl 64, id 8337, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x7e15 (correct), seq 1, ack 6497, win 1002, options [nop,nop,TS val 18347878 ecr 18339025], length 0
12:13:47.686158 IP (tos 0x0, ttl 64, id 46618, offset 0, flags [DF], proto TCP (6), length 131)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xc14f (correct), seq 6497:6576, ack 1, win 92, options [nop,nop,TS val 18339025 ecr 18347878], length 79
12:13:47.686171 IP (tos 0x0, ttl 64, id 8338, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x7dc6 (correct), seq 1, ack 6576, win 1002, options [nop,nop,TS val 18347878 ecr 18339025], length 0
12:13:47.686593 IP (tos 0x0, ttl 64, id 46619, offset 0, flags [DF], proto TCP (6), length 372)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xe92a (correct), seq 6576:6896, ack 1, win 92, options [nop,nop,TS val 18339025 ecr 18347878], length 320
12:13:47.686605 IP (tos 0x0, ttl 64, id 8339, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x7c86 (correct), seq 1, ack 6896, win 1002, options [nop,nop,TS val 18347878 ecr 18339025], length 0
12:13:51.739734 IP (tos 0x0, ttl 64, id 46620, offset 0, flags [DF], proto TCP (6), length 187)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xdff3 (correct), seq 6896:7031, ack 1, win 92, options [nop,nop,TS val 18340039 ecr 18347878], length 135
12:13:51.739757 IP (tos 0x0, ttl 64, id 8340, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x7413 (correct), seq 1, ack 7031, win 1002, options [nop,nop,TS val 18348892 ecr 18340039], length 0
12:13:51.742402 IP (tos 0x0, ttl 64, id 46621, offset 0, flags [DF], proto TCP (6), length 1500)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [.], cksum 0x7fdc (correct), seq 7031:8479, ack 1, win 92, options [nop,nop,TS val 18340039 ecr 18348892], length 1448
12:13:51.742416 IP (tos 0x0, ttl 64, id 8341, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x6e6b (correct), seq 1, ack 8479, win 1002, options [nop,nop,TS val 18348892 ecr 18340039], length 0
12:13:51.742464 IP (tos 0x0, ttl 64, id 46622, offset 0, flags [DF], proto TCP (6), length 1082)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0xa5ce (correct), seq 8479:9509, ack 1, win 92, options [nop,nop,TS val 18340039 ecr 18348892], length 1030
12:13:51.742473 IP (tos 0x0, ttl 64, id 8342, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x6a75 (correct), seq 1, ack 9509, win 986, options [nop,nop,TS val 18348892 ecr 18340039], length 0
12:13:53.766288 IP (tos 0x0, ttl 64, id 46623, offset 0, flags [DF], proto TCP (6), length 150)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x573f (correct), seq 9509:9607, ack 1, win 92, options [nop,nop,TS val 18340545 ecr 18348892], length 98
12:13:53.766341 IP (tos 0x0, ttl 64, id 8343, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x660f (correct), seq 1, ack 9607, win 1002, options [nop,nop,TS val 18349398 ecr 18340545], length 0
12:13:54.781490 IP (tos 0x0, ttl 64, id 46624, offset 0, flags [DF], proto TCP (6), length 1500)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [.], cksum 0x860e (correct), seq 9607:11055, ack 1, win 92, options [nop,nop,TS val 18340799 ecr 18349398], length 1448
12:13:54.781513 IP (tos 0x0, ttl 64, id 8344, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x5e6b (correct), seq 1, ack 11055, win 1002, options [nop,nop,TS val 18349652 ecr 18340799], length 0
12:13:54.781610 IP (tos 0x0, ttl 64, id 46625, offset 0, flags [DF], proto TCP (6), length 218)
192.168.1.71.39297 > 192.168.1.130.cfinger: Flags [P.], cksum 0x823d (correct), seq 11055:11221, ack 1, win 92, options [nop,nop,TS val 18340799 ecr 18349398], length 166
12:13:54.781619 IP (tos 0x0, ttl 64, id 8345, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.130.cfinger > 192.168.1.71.39297: Flags [.], cksum 0x5dc7 (correct), seq 1, ack 11221, win 1000, options [nop,nop,TS val 18349652 ecr 18340799], length 0
12:13:56.738976 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.71 tell 192.168.1.130, length 28
12:13:56.739684 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.1.71 is-at 00:0c:29:8f:52:05 (oui Unknown), length 46
no cheksum error ... but same process using ... (tcpdump) ???