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madflojo/tcpdump.console

Created September 5, 2021 18:39
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Set Linger Article - tcpdump first try
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tcpdump.console
# tcpdump -n -vvv -i lo0 port 9000
tcpdump: listening on lo0, link-type NULL (BSD loopback), capture size 262144 bytes
11:28:39.808360 IP6 (flowlabel 0x90100, hlim 64, next-header TCP (6) payload length: 44) ::1.50796 > ::1.9000: Flags [S], cksum 0x0034 (incorrect -> 0x8d95), seq 1062602566, win 65535, options [mss 16324,nop,wscale 6,nop,nop,TS val 316484679 ecr 0,sackOK,eol], length 0
11:28:39.808429 IP6 (flowlabel 0x30a00, hlim 64, next-header TCP (6) payload length: 44) ::1.9000 > ::1.50796: Flags [S.], cksum 0x0034 (incorrect -> 0x9e6d), seq 3264678097, ack 1062602567, win 65535, options [mss 16324,nop,wscale 6,nop,nop,TS val 3908319929 ecr 316484679,sackOK,eol], length 0
11:28:39.808445 IP6 (flowlabel 0x90100, hlim 64, next-header TCP (6) payload length: 32) ::1.50796 > ::1.9000: Flags [.], cksum 0x0028 (incorrect -> 0xff6a), seq 1, ack 1, win 6371, options [nop,nop,TS val 316484679 ecr 3908319929], length 0
11:28:39.808457 IP6 (flowlabel 0x30a00, hlim 64, next-header TCP (6) payload length: 32) ::1.9000 > ::1.50796: Flags [.], cksum 0x0028 (incorrect -> 0xff6a), seq 1, ack 1, win 6371, options [nop,nop,TS val 3908319929 ecr 316484679], length 0
11:28:39.808772 IP6 (flowlabel 0x90100, hlim 64, next-header TCP (6) payload length: 66) ::1.50796 > ::1.9000: Flags [P.], cksum 0x004a (incorrect -> 0x22b8), seq 1:35, ack 1, win 6371, options [nop,nop,TS val 316484679 ecr 3908319929], length 34
11:28:39.808805 IP6 (flowlabel 0x30a00, hlim 64, next-header TCP (6) payload length: 32) ::1.9000 > ::1.50796: Flags [.], cksum 0x0028 (incorrect -> 0xff48), seq 1, ack 35, win 6371, options [nop,nop,TS val 3908319929 ecr 316484679], length 0
11:28:39.808884 IP6 (flowlabel 0x30a00, hlim 64, next-header TCP (6) payload length: 152) ::1.9000 > ::1.50796: Flags [P.], cksum 0x00a0 (incorrect -> 0x2240), seq 1:121, ack 35, win 6371, options [nop,nop,TS val 3908319929 ecr 316484679], length 120
11:28:39.808899 IP6 (flowlabel 0x90100, hlim 64, next-header TCP (6) payload length: 32) ::1.50796 > ::1.9000: Flags [.], cksum 0x0028 (incorrect -> 0xfed1), seq 35, ack 121, win 6370, options [nop,nop,TS val 316484679 ecr 3908319929], length 0
11:28:54.812160 IP6 (flowlabel 0x30a00, hlim 64, next-header TCP (6) payload length: 32) ::1.9000 > ::1.50796: Flags [F.], cksum 0x0028 (incorrect -> 0xc442), seq 121, ack 35, win 6371, options [nop,nop,TS val 3908334918 ecr 316484679], length 0
11:28:54.812196 IP6 (flowlabel 0x90100, hlim 64, next-header TCP (6) payload length: 32) ::1.50796 > ::1.9000: Flags [.], cksum 0x0028 (incorrect -> 0x89b6), seq 35, ack 122, win 6370, options [nop,nop,TS val 316499668 ecr 3908334918], length 0
11:28:54.812917 IP6 (flowlabel 0x90100, hlim 64, next-header TCP (6) payload length: 32) ::1.50796 > ::1.9000: Flags [F.], cksum 0x0028 (incorrect -> 0x89b5), seq 35, ack 122, win 6370, options [nop,nop,TS val 316499668 ecr 3908334918], length 0
11:28:54.812958 IP6 (flowlabel 0x30a00, hlim 64, next-header TCP (6) payload length: 32) ::1.9000 > ::1.50796: Flags [.], cksum 0x0028 (incorrect -> 0x89b4), seq 122, ack 36, win 6371, options [nop,nop,TS val 3908334918 ecr 316499668], length 0
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