[Bug 275354] TCP broken with some hosts

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 26 Nov 2023 19:58:42 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275354

--- Comment #1 from Ivan Rozhuk <rozhuk.im@gmail.com> ---
this work ok:
fetch --no-verify-hostname
https://distcache.eu.FreeBSD.org/local-distfiles/sunpoet/texinfo/htmlxref.cnf-20230402

21:57:42.937400 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 74: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
60)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [S], cksum 0x5417 (correct),
seq 1421265831, win 65535, options [mss 1460,nop,wscale 10,sackOK,TS val
3702133997 ecr 0], length 0
21:57:42.976441 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 74: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6), length
60)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [S.], cksum 0xeed2 (correct),
seq 1467582487, ack 1421265832, win 65535, options [mss 1300,nop,wscale
6,sackOK,TS val 3904806279 ecr 3702133997], length 0
21:57:42.977103 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0x1c95 (correct),
seq 1, ack 1, win 65, options [nop,nop,TS val 3702134037 ecr 3904806279],
length 0
21:57:43.030955 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 583: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6),
length 569)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [P.], cksum 0x1e5b (correct),
seq 1:518, ack 1, win 65, options [nop,nop,TS val 3702134091 ecr 3904806279],
length 517
21:57:43.070721 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x242b (correct),
seq 1:1389, ack 518, win 1029, options [nop,nop,TS val 3904806374 ecr
3702134091], length 1388
21:57:43.070727 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 1, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x284e (correct),
seq 1389:2777, ack 518, win 1029, options [nop,nop,TS val 3904806374 ecr
3702134091], length 1388
21:57:43.070730 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1386: (tos 0x0, ttl 51, id 2, offset 0, flags [DF], proto TCP (6),
length 1372)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [P.], cksum 0xc39b (correct),
seq 2777:4097, ack 518, win 1029, options [nop,nop,TS val 3904806374 ecr
3702134091], length 1320
21:57:43.070732 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 124: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6), length
110)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [P.], cksum 0xa2a1 (correct),
seq 4097:4155, ack 518, win 1029, options [nop,nop,TS val 3904806374 ecr
3702134091], length 58
21:57:43.070920 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0x1468 (correct),
seq 518, ack 1389, win 64, options [nop,nop,TS val 3702134131 ecr 3904806374],
length 0
21:57:43.070942 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0x0efd (correct),
seq 518, ack 2777, win 63, options [nop,nop,TS val 3702134131 ecr 3904806374],
length 0
21:57:43.070962 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0x09d6 (correct),
seq 518, ack 4097, win 62, options [nop,nop,TS val 3702134131 ecr 3904806374],
length 0
21:57:43.073110 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 146: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6),
length 132)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [P.], cksum 0x78a5 (correct),
seq 518:598, ack 4155, win 65, options [nop,nop,TS val 3702134133 ecr
3904806374], length 80
21:57:43.112368 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 353: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6), length
339)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [P.], cksum 0xb36f (correct),
seq 4155:4442, ack 598, win 1029, options [nop,nop,TS val 3904806415 ecr
3702134133], length 287
21:57:43.112490 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 353: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6), length
339)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [P.], cksum 0x5b2a (correct),
seq 4442:4729, ack 598, win 1029, options [nop,nop,TS val 3904806415 ecr
3702134133], length 287
21:57:43.112535 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 475: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6),
length 461)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [P.], cksum 0xabd3 (correct),
seq 598:1007, ack 4442, win 65, options [nop,nop,TS val 3702134173 ecr
3904806415], length 409
21:57:43.123622 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0x0514 (correct),
seq 1007, ack 4729, win 65, options [nop,nop,TS val 3702134184 ecr 3904806415],
length 0
21:57:43.152068 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x3b9d (correct),
seq 4729:6117, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152074 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 1, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0xd5de (correct),
seq 6117:7505, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152077 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 2, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x4a6b (correct),
seq 7505:8893, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152176 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 3, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x6a31 (correct),
seq 8893:10281, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152187 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 4, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x6f24 (correct),
seq 10281:11669, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152203 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 5, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x398b (correct),
seq 11669:13057, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152210 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 6, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x89ee (correct),
seq 13057:14445, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152226 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 7, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x9174 (correct),
seq 14445:15833, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152231 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 8, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0xe373 (correct),
seq 15833:17221, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152233 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xff64 (correct),
seq 1007, ack 6117, win 64, options [nop,nop,TS val 3702134212 ecr 3904806455],
length 0
21:57:43.152249 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 9, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0xe9de (correct),
seq 17221:18609, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152255 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xf9f9 (correct),
seq 1007, ack 7505, win 63, options [nop,nop,TS val 3702134212 ecr 3904806455],
length 0
21:57:43.152267 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 10, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x2b72 (correct),
seq 18609:19997, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152269 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1204: (tos 0x0, ttl 51, id 11, offset 0, flags [DF], proto TCP (6),
length 1190)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [P.], cksum 0xbb80 (correct),
seq 19997:21135, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1138
21:57:43.152277 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0xb217 (correct),
seq 21135:22523, ack 1007, win 1029, options [nop,nop,TS val 3904806455 ecr
3702134173], length 1388
21:57:43.152283 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xf48e (correct),
seq 1007, ack 8893, win 62, options [nop,nop,TS val 3702134212 ecr 3904806455],
length 0
21:57:43.153223 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xef1f (correct),
seq 1007, ack 10281, win 64, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153251 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xe9b3 (correct),
seq 1007, ack 11669, win 64, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153260 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xe447 (correct),
seq 1007, ack 13057, win 64, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153287 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xdedc (correct),
seq 1007, ack 14445, win 63, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153296 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xd971 (correct),
seq 1007, ack 15833, win 62, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153321 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xd406 (correct),
seq 1007, ack 17221, win 61, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153338 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xce9b (correct),
seq 1007, ack 18609, win 60, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153355 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xc930 (correct),
seq 1007, ack 19997, win 59, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.153372 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xbf54 (correct),
seq 1007, ack 22523, win 57, options [nop,nop,TS val 3702134213 ecr
3904806455], length 0
21:57:43.191035 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0xc7bb (correct),
seq 22523:23911, ack 1007, win 1029, options [nop,nop,TS val 3904806494 ecr
3702134212], length 1388
21:57:43.191039 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 1, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x236a (correct),
seq 23911:25299, ack 1007, win 1029, options [nop,nop,TS val 3904806494 ecr
3702134212], length 1388
21:57:43.191174 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xb994 (correct),
seq 1007, ack 23911, win 64, options [nop,nop,TS val 3702134251 ecr
3904806494], length 0
21:57:43.191194 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xb428 (correct),
seq 1007, ack 25299, win 64, options [nop,nop,TS val 3702134251 ecr
3904806494], length 0
21:57:43.191210 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x9f04 (correct),
seq 25299:26687, ack 1007, win 1029, options [nop,nop,TS val 3904806494 ecr
3702134212], length 1388
21:57:43.191222 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 1, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x473b (correct),
seq 26687:28075, ack 1007, win 1029, options [nop,nop,TS val 3904806494 ecr
3702134212], length 1388
21:57:43.191334 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 1454: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6),
length 1440)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [.], cksum 0x8ae7 (correct),
seq 28075:29463, ack 1007, win 1029, options [nop,nop,TS val 3904806494 ecr
3702134212], length 1388
21:57:43.191441 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 399: (tos 0x0, ttl 51, id 1, offset 0, flags [DF], proto TCP (6), length
385)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [P.], cksum 0x989b (correct),
seq 29463:29796, ack 1007, win 1029, options [nop,nop,TS val 3904806494 ecr
3702134212], length 333
21:57:43.191678 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [F.], cksum 0x9ef6 (correct),
seq 29796, ack 1007, win 1029, options [nop,nop,TS val 3904806495 ecr
3702134213], length 0
21:57:43.192348 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xaeba (correct),
seq 1007, ack 26687, win 65, options [nop,nop,TS val 3702134252 ecr
3904806494], length 0
21:57:43.192367 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xa94f (correct),
seq 1007, ack 28075, win 64, options [nop,nop,TS val 3702134252 ecr
3904806494], length 0
21:57:43.192383 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xa3e4 (correct),
seq 1007, ack 29463, win 63, options [nop,nop,TS val 3702134252 ecr
3904806494], length 0
21:57:43.192410 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 66: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
52)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [.], cksum 0xa296 (correct),
seq 1007, ack 29797, win 63, options [nop,nop,TS val 3702134252 ecr
3904806494], length 0
21:57:43.192584 00:23:34:12:99:00 > 58:9c:fc:10:84:6f, ethertype IPv4 (0x0800),
length 90: (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto TCP (6), length
76)
    192.0.3.254.53486 > 147.28.184.43.443: Flags [P.], cksum 0xfbcc (correct),
seq 1007:1031, ack 29797, win 65, options [nop,nop,TS val 3702134253 ecr
3904806494], length 24
21:57:43.231949 58:9c:fc:10:84:6f > 00:23:34:12:99:00, ethertype IPv4 (0x0800),
length 54: (tos 0x0, ttl 51, id 0, offset 0, flags [DF], proto TCP (6), length
40)
    147.28.184.43.443 > 192.0.3.254.53486: Flags [R], cksum 0x3d4e (correct),
seq 1467612284, win 0, length 0

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