root@radish:~ # tcpdump -vvvvv -i genet0 host gitmir.fra.freebsd.org
tcpdump: listening on genet0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
09:11:48.505498 IP6 (flowlabel 0x277db, hlim 64, next-header TCP (6) payload length: 40) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [S], cksum 0x1884 (correct), seq 1897233143, win 65535, options [mss 1440,nop,wscale 6,sackOK,TS val 2709574654 ecr 0], length 0
09:11:48.526512 IP6 (flowlabel 0x6b725, hlim 252, next-header TCP (6) payload length: 40) gitmir.fra.freebsd.org.https > 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434: Flags [S.], cksum 0x4552 (correct), seq 2453059365, ack 1897233144, win 65535, options [mss 8940,nop,wscale 6,sackOK,TS val 2834023308 ecr 2709574654], length 0
09:11:48.526577 IP6 (flowlabel 0x277db, hlim 64, next-header TCP (6) payload length: 32) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0x8d35 (correct), seq 1, ack 1, win 1035, options [nop,nop,TS val 2709574675 ecr 2834023308], length 0
09:11:48.530721 IP6 (flowlabel 0x277db, hlim 64, next-header TCP (6) payload length: 549) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [P.], cksum 0x6104 (correct), seq 1:518, ack 1, win 1035, options [nop,nop,TS val 2709574679 ecr 2834023308], length 517
09:11:48.552049 IP6 (flowlabel 0x6b725, hlim 252, next-header TCP (6) payload length: 1366) gitmir.fra.freebsd.org.https > 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434: Flags [P.], cksum 0xa1fe (correct), seq 1429:2763, ack 518, win 1035, options [nop,nop,TS val 2834023334 ecr 2709574679], length 1334
09:11:48.552104 IP6 (flowlabel 0x277db, hlim 64, next-header TCP (6) payload length: 44) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0xb1e6 (correct), seq 518, ack 1, win 1035, options [nop,nop,TS val 2709574701 ecr 2834023308,nop,nop,sack 1 {1429:2763}], length 0
09:12:48.568905 IP6 (hlim 64, next-header TCP (6) payload length: 32) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0xa0a5 (correct), seq 517, ack 1, win 1035, options [nop,nop,TS val 2709634718 ecr 2834023308], length 0
09:12:48.589828 IP6 (flowlabel 0x6b725, hlim 252, next-header TCP (6) payload length: 1366) gitmir.fra.freebsd.org.https > 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434: Flags [FP.], cksum 0xb760 (correct), seq 1429:2763, ack 518, win 1035, options [nop,nop,TS val 2834083372 ecr 2709574701], length 1334
09:12:48.589874 IP6 (flowlabel 0x277db, hlim 64, next-header TCP (6) payload length: 52) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0x0437 (correct), seq 518, ack 1, win 1035, options [nop,nop,TS val 2709634739 ecr 2834023308,nop,nop,sack 2 {1429:2763}{1429:2763}], length 0
09:13:48.601094 IP6 (hlim 64, next-header TCP (6) payload length: 32) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0xb624 (correct), seq 517, ack 1, win 1035, options [nop,nop,TS val 2709694750 ecr 2834023308], length 0
09:13:48.622210 IP6 (flowlabel 0x6b725, hlim 252, next-header TCP (6) payload length: 1366) gitmir.fra.freebsd.org.https > 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434: Flags [FP.], cksum 0xe258 (correct), seq 1429:2763, ack 518, win 1035, options [nop,nop,TS val 2834143404 ecr 2709634739], length 1334
09:13:48.622266 IP6 (flowlabel 0x277db, hlim 64, next-header TCP (6) payload length: 52) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0x19b6 (correct), seq 518, ack 1, win 1035, options [nop,nop,TS val 2709694771 ecr 2834023308,nop,nop,sack 2 {1429:2763}{1429:2763}], length 0
09:14:40.164110 IP6 (flowlabel 0x6b725, hlim 252, next-header TCP (6) payload length: 32) gitmir.fra.freebsd.org.https > 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434: Flags [R.], cksum 0x10d2 (correct), seq 2764, ack 518, win 0, options [nop,nop,TS val 2834194946 ecr 2709694771], length 0
09:14:40.164148 IP6 (hlim 64, next-header TCP (6) payload length: 32) 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434 > gitmir.fra.freebsd.org.https: Flags [.], cksum 0xecb7 (correct), seq 518, ack 1, win 1035, options [nop,nop,TS val 2709746313 ecr 2834023308], length 0
09:14:40.185095 IP6 (hlim 252, next-header TCP (6) payload length: 20) gitmir.fra.freebsd.org.https > 2a02:8010:610d:1:dea6:32ff:fee2:48fc.10434: Flags [R], cksum 0x987e (correct), seq 2453059366, win 0, length 0