└─$  sudo tcpdump -nn -i lo port 8000
[sudo] password for me: 
Sorry, try again.
[sudo] password for me: 
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes


22:48:47.189296 IP 192.168.3.165.59956 > 192.168.3.165.8000: Flags [S], seq 2973639691, win 43690, options [mss 65495,sackOK,TS val 5010001 ecr 0,nop,wscale 7], length 0
22:48:47.189311 IP 192.168.3.165.8000 > 192.168.3.165.59956: Flags [S.], seq 3445715874, ack 2973639692, win 65483, options [mss 65495,sackOK,TS val 5010001 ecr 5010001,nop,wscale 1], length 0
22:48:47.189321 IP 192.168.3.165.59956 > 192.168.3.165.8000: Flags [.], ack 1, win 342, options [nop,nop,TS val 5010001 ecr 5010001], length 0
22:48:47.189532 IP 192.168.3.165.59956 > 192.168.3.165.8000: Flags [P.], seq 1:423, ack 1, win 342, options [nop,nop,TS val 5010001 ecr 5010001], length 422
22:48:47.189542 IP 192.168.3.165.8000 > 192.168.3.165.59956: Flags [.], ack 423, win 32531, options [nop,nop,TS val 5010001 ecr 5010001], length 0
22:49:32.303034 IP 192.168.3.165.59956 > 192.168.3.165.8000: Flags [.], ack 1, win 342, options [nop,nop,TS val 5021280 ecr 5010001], length 0
22:49:32.303066 IP 192.168.3.165.8000 > 192.168.3.165.59956: Flags [.], ack 423, win 32531, options [nop,nop,TS val 5021280 ecr 5010001], length 0
22:50:12.088794 IP 192.168.3.165.8000 > 192.168.3.165.59956: Flags [R.], seq 1, ack 423, win 32742, options [nop,nop,TS val 5031226 ecr 5010001], length 0