1. 00:00:00.000000 AF IPv4 (2), length 64: (tos 0x0, ttl 64, id 13394, offset 0, flags [DF], proto TCP (6), length 60, bad cksum 0 (->868)!)
  2. localhost.21806 > localhost.8080: Flags [S], cksum 0x6ef0 (correct), seq 2324298893, win 65535, options [mss 16344,nop,wscale 6,sackOK,TS val 15508520 ecr 0], length 0
  3. 00:00:01.023210 AF IPv4 (2), length 64: (tos 0x0, ttl 64, id 13395, offset 0, flags [DF], proto TCP (6), length 60, bad cksum 0 (->867)!)
  4. localhost.26453 > localhost.8080: Flags [S], cksum 0x61f4 (correct), seq 397502012, win 65535, options [mss 16344,nop,wscale 6,sackOK,TS val 15509543 ecr 0], length 0
  5. 00:00:01.046333 AF IPv4 (2), length 64: (tos 0x0, ttl 64, id 13397, offset 0, flags [DF], proto TCP (6), length 60, bad cksum 0 (->865)!)
  6. localhost.32422 > localhost.8080: Flags [S], cksum 0x12e5 (correct), seq 48803501, win 65535, options [mss 16344,nop,wscale 6,sackOK,TS val 15510589 ecr 0], length 0
  7. 00:00:01.015020 AF IPv4 (2), length 64: (tos 0x0, ttl 64, id 13398, offset 0, flags [DF], proto TCP (6), length 60, bad cksum 0 (->864)!)
  8. localhost.42603 > localhost.8080: Flags [S], cksum 0x9bcf (correct), seq 3055634125, win 65535, options [mss 16344,nop,wscale 6,sackOK,TS val 15511604 ecr 0], length 0
  9. 00:00:00.139198 AF IPv4 (2), length 64: (tos 0x0, ttl 64, id 13399, offset 0, flags [DF], proto TCP (6), length 60, bad cksum 0 (->863)!)
  10. localhost.63233 > localhost.23053: Flags [S], cksum 0x7610 (correct), seq 2601843706, win 65535, options [mss 16344,nop,wscale 6,sackOK,TS val 15511743 ecr 0], length 0
  11. 00:00:03.019183 AF IPv4 (2), length 64: (tos 0x0, ttl 64, id 13401, offset 0, flags [DF], proto TCP (6), length 60, bad cksum 0 (->861)!)
  12. localhost.63233 > localhost.23053: Flags [S], cksum 0x6a44 (correct), seq 2601843706, win 65535, options [mss 16344,nop,wscale 6,sackOK,TS val 15514763 ecr 0], length 0

PF