Date: Sun, 06 Feb 2000 08:06:06 -0800 From: Randy Bush <randy@psg.com> To: freebsd-net@freebsd.org Subject: Re: backoff recovery? Message-ID: <E12HUCM-0000Zg-00@roam.psg.com>
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the following message may have been missed in the excitement of stream.c.
i have retested, and *really* do believe we see non-recovery from backoff.
randy
From: Randy Bush <randy@psg.com>
To: freebsd-net@freebsd.org
Subject: backoff recovery?
Date: Fri, 21 Jan 2000 10:33:29 -0800
Message-Id: <E12BisD-00057v-00@roam.psg.com>
on a metricom in a san jose hotel. really bad link packet loss. stack's
response to the poor link seemed a bit strange to me. so i sent the traces
to some friends, and in discussion with vern, ...
From: Vern Paxson <vern@ee.lbl.gov>
To: Randy Bush <randy@psg.com>
> you may or not be interested in a trace.
Interesting trace. I don't think the basic problem is SCP/SSH. From
the look of it, there's (1) significant packet loss; (2) a bug in the
TCP that it isn't collapsing down the exponentially backed-off timer
after the retransmitted data is acked (this surprises me in a stack as
mature as FreeBSD); (3) a shutdown bug in which one side gets stuck
sending FINs and they don't elicit FIN-acks or RSTs (perhaps they're
being dropped due to an erroneous conclusion that their timestamp is
bad). It may be that SCP is suffering from more loses than FTP because
it's not managing to packetize its data well, and that could in turn
reflect interactions between crypto operations and buffering; but I
don't know whether in the trace it actually makes it out of its initial
crypto negotiation or not.
Hmmmm, a thought: perhaps Metricom is particularly bad at dealing with
bidirectional transfers, and the fact that SCP is doing that initially
(and some of it collides, due to retransmissions, due in turn to the
loss) means it does significantly worse than the unidirectional FTP data
transfer, which also suffers from loss, but not as bad.
Dunno ...
Vern
of course, the horrible link may be obscuring things.
the traces ...
204.179.135.13 is 3.4+PAO
147.28.0.39 is 4.0-current a few weeks old
09:11:11.471846 204.179.135.13.970 > 147.28.0.39.22: F 2285079120:2285079120(0) ack 3637246625 win 17376 <nop,nop,timestamp 250627 128377149> (DF) [tos 0x8]
09:11:14.929037 204.179.137.61.969 > 147.28.0.39.22: S 2415896350:2415896350(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 250634 0> (DF)
09:11:17.873883 204.179.137.61.969 > 147.28.0.39.22: S 2415896350:2415896350(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 250639 0> (DF)
09:11:18.175014 147.28.0.39.22 > 204.179.137.61.969: S 3786450220:3786450220(0) ack 2415896351 win 17376 <mss 1460,nop,wscale 0,nop,nop,timestamp 128427845 250634> (DF)
09:11:18.175116 204.179.137.61.969 > 147.28.0.39.22: . ack 1 win 17376 <nop,nop,timestamp 250640 128427845> (DF)
09:11:18.285493 147.28.0.39.22 > 204.179.137.61.969: . ack 1 win 17376 <nop,nop,timestamp 128428140 250639> (DF)
09:11:19.873923 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 250643 128377149> (DF) [tos 0x8]
09:11:20.415333 147.28.0.39.22 > 204.179.137.61.969: P 1:16(15) ack 1 win 17376 <nop,nop,timestamp 128428343 250640> (DF) [tos 0x10]
09:11:20.415768 204.179.137.61.969 > 147.28.0.39.22: P 1:16(15) ack 16 win 17376 <nop,nop,timestamp 250645 128428343> (DF) [tos 0x10]
09:11:30.874292 204.179.137.61.969 > 147.28.0.39.22: P 1:16(15) ack 16 win 17376 <nop,nop,timestamp 250665 128428343> (DF) [tos 0x10]
09:11:31.685822 147.28.0.39.22 > 204.179.137.61.969: P 16:292(276) ack 16 win 17376 <nop,nop,timestamp 128429454 250645> (DF) [tos 0x10]
09:11:31.696890 147.28.0.39.22 > 204.179.137.61.969: . ack 16 win 17376 <nop,nop,timestamp 128429455 250665> (DF) [tos 0x10]
09:11:31.711505 204.179.137.61.969 > 147.28.0.39.22: P 16:172(156) ack 292 win 17376 <nop,nop,timestamp 250667 128429454> (DF) [tos 0x10]
09:11:35.495767 147.28.0.39.22 > 204.179.137.61.969: . ack 172 win 17376 <nop,nop,timestamp 128429854 250667> (DF) [tos 0x10]
09:11:35.615775 147.28.0.39.22 > 204.179.137.61.969: P 292:304(12) ack 172 win 17376 <nop,nop,timestamp 128429876 250667> (DF) [tos 0x10]
09:11:35.615964 204.179.137.61.969 > 147.28.0.39.22: P 172:192(20) ack 304 win 17376 <nop,nop,timestamp 250675 128429876> (DF) [tos 0x10]
09:11:36.874418 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 250677 128377149> (DF) [tos 0x8]
09:11:49.206191 147.28.0.39.22 > 204.179.137.61.969: P 304:376(72) ack 192 win 17376 <nop,nop,timestamp 128430952 250675> (DF) [tos 0x10]
09:11:49.207551 204.179.137.61.969 > 147.28.0.39.22: P 192:348(156) ack 376 win 17376 <nop,nop,timestamp 250702 128430952> (DF) [tos 0x10]
09:11:49.736176 147.28.0.39.22 > 204.179.137.61.969: P 376:516(140) ack 348 win 17376 <nop,nop,timestamp 128431280 250702> (DF) [tos 0x10]
09:11:49.738303 147.28.0.39.22 > 204.179.137.61.969: P 516:528(12) ack 348 win 17376 <nop,nop,timestamp 128431280 250702> (DF) [tos 0x10]
09:11:49.874830 204.179.137.61.969 > 147.28.0.39.22: . ack 528 win 17376 <nop,nop,timestamp 250704 128431280> (DF) [tos 0x10]
09:11:58.731953 204.179.137.61.1323 > 192.96.22.18.25: S 2424678315:2424678315(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 250721 0> (DF)
09:12:00.266387 192.96.22.18.25 > 204.179.137.61.1323: R 0:0(0) ack 2424678316 win 0
09:12:10.875442 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 250745 128377149> (DF) [tos 0x8]
09:12:12.761727 204.179.137.61.969 > 147.28.0.39.22: P 348:376(28) ack 528 win 17376 <nop,nop,timestamp 250749 128431280> (DF) [tos 0x10]
09:12:13.176893 147.28.0.39.22 > 204.179.137.61.969: P 528:540(12) ack 376 win 17376 <nop,nop,timestamp 128433631 250749> (DF) [tos 0x10]
09:12:13.178538 204.179.137.61.969 > 147.28.0.39.22: P 376:412(36) ack 540 win 17376 <nop,nop,timestamp 250750 128433631> (DF) [tos 0x8]
09:12:13.666890 147.28.0.39.22 > 204.179.137.61.969: . ack 412 win 17376 <nop,nop,timestamp 128433682 250750> (DF) [tos 0x8]
09:12:13.666948 204.179.137.61.969 > 147.28.0.39.22: P 412:432(20) ack 540 win 17376 <nop,nop,timestamp 250751 128433682> (DF) [tos 0x8]
09:12:33.876076 204.179.137.61.969 > 147.28.0.39.22: P 412:432(20) ack 540 win 17376 <nop,nop,timestamp 250791 128433682> (DF) [tos 0x8]
09:12:37.417574 147.28.0.39.22 > 204.179.137.61.969: . ack 432 win 17376 <nop,nop,timestamp 128435768 250791> (DF) [tos 0x8]
09:12:42.677739 147.28.0.39.22 > 204.179.137.61.969: P 540:584(44) ack 432 win 17376 <nop,nop,timestamp 128436570 250791> (DF) [tos 0x8]
09:12:42.678810 204.179.137.61.969 > 147.28.0.39.22: P 432:452(20) ack 584 win 17376 <nop,nop,timestamp 250809 128436570> (DF) [tos 0x8]
09:12:58.876825 204.179.137.61.969 > 147.28.0.39.22: P 432:452(20) ack 584 win 17376 <nop,nop,timestamp 250841 128436570> (DF) [tos 0x8]
09:13:02.168295 147.28.0.39.22 > 204.179.137.61.969: . ack 452 win 17376 <nop,nop,timestamp 128438240 250841> (DF) [tos 0x8]
09:13:14.877260 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 250873 128377149> (DF) [tos 0x8]
09:13:37.277965 204.179.137.61.123 > 129.250.0.49.123: v4 client strat 4 poll 10 prec -28
09:13:53.819596 207.126.101.100.119 > 204.179.130.75.1231: P 1183230998:1183231406(408) ack 57933214 win 33768 (DF)
09:13:53.819647 207.126.101.100.119 > 204.179.130.75.1231: P 0:408(408) ack 1 win 33768 (DF)
09:13:58.754096 204.179.137.61.1324 > 192.96.22.18.25: S 2448056994:2448056994(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 250961 0> (DF)
09:14:01.378531 204.179.137.61.1324 > 192.96.22.18.25: S 2448056994:2448056994(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 250966 0> (DF)
09:14:05.299848 192.96.22.18.25 > 204.179.137.61.1324: R 0:0(0) ack 2448056995 win 0
09:14:18.879117 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251001 128377149> (DF) [tos 0x8]
09:14:26.279371 204.179.137.61.123 > 129.250.0.27.123: v4 client strat 4 poll 10 prec -28
09:14:26.650471 129.250.0.27.123 > 204.179.137.61.123: v4 server strat 2 poll 10 prec -24
09:14:28.279422 204.179.137.61.123 > 129.250.0.10.123: v4 client strat 4 poll 10 prec -28
09:14:28.970534 129.250.0.10.123 > 204.179.137.61.123: v4 server strat 2 poll 10 prec -24
09:14:42.279827 204.179.137.61.123 > 129.250.0.49.123: v4 client strat 4 poll 6 prec -28
09:14:42.980932 129.250.0.49.123 > 204.179.137.61.123: v4 server strat 2 poll 6 prec -24
09:15:22.880975 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251129 128377149> (DF) [tos 0x8]
09:15:47.281680 204.179.137.61.123 > 129.250.0.49.123: v4 client strat 4 poll 6 prec -28
09:15:47.972895 129.250.0.49.123 > 204.179.137.61.123: v4 server strat 2 poll 6 prec -24
09:15:58.777625 204.179.137.61.1325 > 192.96.22.18.25: S 2470865643:2470865643(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251201 0> (DF)
09:16:01.382000 204.179.137.61.1325 > 192.96.22.18.25: S 2470865643:2470865643(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251206 0> (DF)
09:16:05.243302 192.96.22.18.25 > 204.179.137.61.1325: R 0:0(0) ack 2470865644 win 0
09:16:26.882813 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251257 128377149> (DF) [tos 0x8]
09:16:35.283077 204.179.137.61.123 > 129.250.0.27.123: v4 client strat 4 poll 7 prec -28
09:16:38.283160 204.179.137.61.123 > 129.250.0.10.123: v4 client strat 4 poll 7 prec -28
09:16:38.843426 129.250.0.10.123 > 204.179.137.61.123: v4 server strat 3 poll 7 prec -24
09:16:53.283585 204.179.137.61.123 > 129.250.0.49.123: v4 client strat 4 poll 6 prec -28
09:17:30.884691 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251385 128377149> (DF) [tos 0x8]
09:17:58.800710 204.179.137.61.1326 > 192.96.22.18.25: S 2493553322:2493553322(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251441 0> (DF)
09:17:59.836675 192.96.22.18.25 > 204.179.137.61.1326: R 0:0(0) ack 2493553323 win 0
09:18:34.886513 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251513 128377149> (DF) [tos 0x8]
09:18:38.958300 204.179.137.61 > 147.28.0.39: icmp: echo request
09:18:39.517785 147.28.0.39 > 204.179.137.61: icmp: echo reply
09:18:39.976600 204.179.137.61 > 147.28.0.39: icmp: echo request
09:18:40.986641 204.179.137.61 > 147.28.0.39: icmp: echo request
09:18:41.996658 204.179.137.61 > 147.28.0.39: icmp: echo request
09:18:43.006690 204.179.137.61 > 147.28.0.39: icmp: echo request
09:18:44.016721 204.179.137.61 > 147.28.0.39: icmp: echo request
09:18:44.297894 147.28.0.39 > 204.179.137.61: icmp: echo reply
09:18:47.099336 147.28.0.39 > 204.179.137.61: icmp: echo reply
09:18:47.118111 147.28.0.39 > 204.179.137.61: icmp: echo reply
09:19:38.888379 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251641 128377149> (DF) [tos 0x8]
09:19:58.824681 204.179.137.61.1327 > 192.96.22.18.25: S 2517030525:2517030525(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251681 0> (DF)
09:20:00.010189 192.96.22.18.25 > 204.179.137.61.1327: R 0:0(0) ack 2517030526 win 0
but ftp makes it through, albeit barely
09:20:42.890232 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251769 128377149> (DF) [tos 0x8]
09:21:46.892088 204.179.135.13.970 > 147.28.0.39.22: F 0:0(0) ack 1 win 17376 <nop,nop,timestamp 251897 128377149> (DF) [tos 0x8]
09:21:58.848083 204.179.137.61.1328 > 192.96.22.18.25: S 2540143257:2540143257(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251921 0> (DF)
09:22:01.392409 204.179.137.61.1328 > 192.96.22.18.25: S 2540143257:2540143257(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251926 0> (DF)
09:22:02.813651 192.96.22.18.25 > 204.179.137.61.1328: R 0:0(0) ack 2540143258 win 0
09:22:20.090484 204.179.137.61.969 > 147.28.0.39.22: F 452:452(0) ack 584 win 17376 <nop,nop,timestamp 251964 128436570> (DF) [tos 0x8]
09:22:23.284492 147.28.0.39.22 > 204.179.137.61.969: . ack 453 win 17376 <nop,nop,timestamp 128494375 251964> (DF) [tos 0x8]
09:22:24.205432 204.179.137.61.1329 > 147.28.0.39.21: S 2544965268:2544965268(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251972 0> (DF)
09:22:26.893202 204.179.137.61.1329 > 147.28.0.39.21: S 2544965268:2544965268(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 251977 0> (DF)
09:22:30.144783 147.28.0.39.21 > 204.179.137.61.1329: . ack 2544965269 win 17376 <nop,nop,timestamp 128495040 251977> (DF)
09:22:30.154422 147.28.0.39.21 > 204.179.137.61.1329: S 3931814626:3931814626(0) ack 2544965269 win 17376 <mss 1460,nop,wscale 0,nop,nop,timestamp 128495080 251977> (DF)
09:22:30.154508 204.179.137.61.1329 > 147.28.0.39.21: . ack 1 win 17376 <nop,nop,timestamp 251984 128495080> (DF)
09:22:30.714829 147.28.0.39.21 > 204.179.137.61.1329: P 1:53(52) ack 1 win 17376 <nop,nop,timestamp 128495380 251984> (DF) [tos 0x10]
09:22:30.893378 204.179.137.61.1329 > 147.28.0.39.21: . ack 53 win 17376 <nop,nop,timestamp 251986 128495380> (DF) [tos 0x10]
09:22:50.893919 204.179.135.13.970 > 147.28.0.39.22: R 1:1(0) ack 1 win 17376 (DF) [tos 0x8]
09:22:51.148182 204.179.137.61.1329 > 147.28.0.39.21: P 1:13(12) ack 53 win 17376 <nop,nop,timestamp 252026 128495380> (DF) [tos 0x10]
09:22:51.635314 147.28.0.39.21 > 204.179.137.61.1329: P 53:87(34) ack 13 win 17376 <nop,nop,timestamp 128497470 252026> (DF) [tos 0x10]
09:22:51.693838 204.179.137.61.1329 > 147.28.0.39.21: . ack 87 win 17376 <nop,nop,timestamp 252027 128497470> (DF) [tos 0x10]
09:22:55.495193 204.179.137.61.1329 > 147.28.0.39.21: P 13:28(15) ack 87 win 17376 <nop,nop,timestamp 252035 128497470> (DF) [tos 0x10]
09:22:55.965439 147.28.0.39.21 > 204.179.137.61.1329: P 87:114(27) ack 28 win 17376 <nop,nop,timestamp 128497905 252035> (DF) [tos 0x10]
09:22:55.966317 204.179.137.61.1329 > 147.28.0.39.21: P 28:34(6) ack 114 win 17376 <nop,nop,timestamp 252036 128497905> (DF) [tos 0x10]
09:22:56.435456 147.28.0.39.21 > 204.179.137.61.1329: P 114:153(39) ack 34 win 17376 <nop,nop,timestamp 128497948 252036> (DF) [tos 0x10]
09:22:56.493980 204.179.137.61.1329 > 147.28.0.39.21: . ack 153 win 17376 <nop,nop,timestamp 252037 128497948> (DF) [tos 0x10]
09:23:15.104327 204.179.137.61.1329 > 147.28.0.39.21: P 34:42(8) ack 153 win 17376 <nop,nop,timestamp 252074 128497948> (DF) [tos 0x10]
09:23:27.894970 204.179.137.61.1329 > 147.28.0.39.21: P 34:42(8) ack 153 win 17376 <nop,nop,timestamp 252099 128497948> (DF) [tos 0x10]
09:23:28.326360 147.28.0.39.21 > 204.179.137.61.1329: P 153:173(20) ack 42 win 17376 <nop,nop,timestamp 128501139 252099> (DF) [tos 0x10]
09:23:28.326557 204.179.137.61.1329 > 147.28.0.39.21: P 42:62(20) ack 173 win 17376 <nop,nop,timestamp 252100 128501139> (DF) [tos 0x10]
09:23:40.395254 204.179.137.61.1329 > 147.28.0.39.21: P 42:62(20) ack 173 win 17376 <nop,nop,timestamp 252124 128501139> (DF) [tos 0x10]
09:23:42.266777 147.28.0.39.21 > 204.179.137.61.1329: . ack 62 win 17376 <nop,nop,timestamp 128502392 252124> (DF) [tos 0x10]
09:23:58.871382 204.179.137.61.1330 > 192.96.22.18.25: S 2562807967:2562807967(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252161 0> (DF)
09:23:59.067279 147.28.0.39.21 > 204.179.137.61.1329: P 173:184(11) ack 62 win 17376 <nop,nop,timestamp 128503774 252124> (DF) [tos 0x10]
09:23:59.067644 204.179.137.61.1329 > 147.28.0.39.21: P 62:89(27) ack 184 win 17376 <nop,nop,timestamp 252162 128503774> (DF) [tos 0x10]
09:23:59.757321 147.28.0.39.21 > 204.179.137.61.1329: P 184:214(30) ack 89 win 17376 <nop,nop,timestamp 128504257 252162> (DF) [tos 0x10]
09:23:59.758237 204.179.137.61.1329 > 147.28.0.39.21: P 89:109(20) ack 214 win 17376 <nop,nop,timestamp 252163 128504257> (DF) [tos 0x10]
09:24:01.395876 204.179.137.61.1330 > 192.96.22.18.25: S 2562807967:2562807967(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252166 0> (DF)
09:24:03.067125 147.28.0.39.20 > 204.179.137.61.49152: S 3952726335:3952726335(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 128504326 0> (DF) [tos 0x8]
09:24:03.067248 204.179.137.61.49152 > 147.28.0.39.20: S 2563803235:2563803235(0) ack 3952726336 win 17376 <mss 1460,nop,wscale 0,nop,nop,timestamp 252170 128504326> (DF)
09:24:05.867269 192.96.22.18.25 > 204.179.137.61.1330: R 0:0(0) ack 2562807968 win 0
09:24:05.877391 147.28.0.39.20 > 204.179.137.61.49152: S 3952726335:3952726335(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 128504626 0> (DF) [tos 0x8]
09:24:05.877468 204.179.137.61.49152 > 147.28.0.39.20: . ack 1 win 17376 <nop,nop,timestamp 252175 128504626> (DF)
09:24:05.887512 147.28.0.39.20 > 204.179.137.61.49152: . ack 1 win 17376 <nop,nop,timestamp 128504666 252170> (DF) [tos 0x8]
09:24:05.907514 147.28.0.39.21 > 204.179.137.61.1329: P 214:290(76) ack 109 win 17376 <nop,nop,timestamp 128504666 252163> (DF) [tos 0x10]
09:24:06.096008 204.179.137.61.1329 > 147.28.0.39.21: . ack 290 win 17376 <nop,nop,timestamp 252176 128504666> (DF) [tos 0x10]
09:24:38.078387 147.28.0.39.21 > 204.179.137.61.1329: P 290:314(24) ack 109 win 17376 <nop,nop,timestamp 128507593 252176> (DF) [tos 0x10]
09:24:38.096911 204.179.137.61.1329 > 147.28.0.39.21: . ack 314 win 17352 <nop,nop,timestamp 252240 128507593> (DF) [tos 0x10]
09:25:58.894426 204.179.137.61.1331 > 192.96.22.18.25: S 2586126435:2586126435(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252401 0> (DF)
09:26:01.399330 204.179.137.61.1331 > 192.96.22.18.25: S 2586126435:2586126435(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252406 0> (DF)
09:26:05.330634 192.96.22.18.25 > 204.179.137.61.1331: R 0:0(0) ack 2586126436 win 0
09:27:58.919306 204.179.137.61.1332 > 192.96.22.18.25: S 2609119057:2609119057(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252642 0> (DF)
09:28:01.902863 204.179.137.61.1332 > 192.96.22.18.25: S 2609119057:2609119057(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252647 0> (DF)
09:28:07.903038 204.179.137.61.1332 > 192.96.22.18.25: S 2609119057:2609119057(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252659 0> (DF)
09:28:19.903405 204.179.137.61.1332 > 192.96.22.18.25: S 2609119057:2609119057(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252683 0> (DF)
09:28:30.535320 147.28.0.39.20 > 204.179.137.61.49152: . 1:1449(1448) ack 1 win 17376 <nop,nop,timestamp 128531027 252175> (DF) [tos 0x8]
09:28:30.703622 204.179.137.61.49152 > 147.28.0.39.20: . ack 1449 win 17376 <nop,nop,timestamp 252705 128531027> (DF) [tos 0x8]
09:28:31.975336 147.28.0.39.20 > 204.179.137.61.49152: . 1449:2897(1448) ack 1 win 17376 <nop,nop,timestamp 128531428 252705> (DF) [tos 0x8]
09:28:32.103677 204.179.137.61.49152 > 147.28.0.39.20: . ack 2897 win 17376 <nop,nop,timestamp 252708 128531428> (DF) [tos 0x8]
09:28:32.225899 147.28.0.39.20 > 204.179.137.61.49152: . 2897:4345(1448) ack 1 win 17376 <nop,nop,timestamp 128531428 252705> (DF) [tos 0x8]
09:28:32.303662 204.179.137.61.49152 > 147.28.0.39.20: . ack 4345 win 17376 <nop,nop,timestamp 252708 128531428> (DF) [tos 0x8]
09:28:33.265474 147.28.0.39.20 > 204.179.137.61.49152: . 4345:5793(1448) ack 1 win 17376 <nop,nop,timestamp 128531558 252708> (DF) [tos 0x8]
09:28:33.303715 204.179.137.61.49152 > 147.28.0.39.20: . ack 5793 win 17376 <nop,nop,timestamp 252710 128531558> (DF) [tos 0x8]
09:28:33.525895 147.28.0.39.20 > 204.179.137.61.49152: . 5793:7241(1448) ack 1 win 17376 <nop,nop,timestamp 128531558 252708> (DF) [tos 0x8]
09:28:33.703704 204.179.137.61.49152 > 147.28.0.39.20: . ack 7241 win 17376 <nop,nop,timestamp 252711 128531558> (DF) [tos 0x8]
09:28:34.445361 147.28.0.39.20 > 204.179.137.61.49152: . 7241:8689(1448) ack 1 win 17376 <nop,nop,timestamp 128531645 252708> (DF) [tos 0x8]
09:28:34.503725 204.179.137.61.49152 > 147.28.0.39.20: . ack 8689 win 17376 <nop,nop,timestamp 252713 128531645> (DF) [tos 0x8]
09:28:34.835355 147.28.0.39.20 > 204.179.137.61.49152: . 8689:10137(1448) ack 1 win 17376 <nop,nop,timestamp 128531707 252710> (DF) [tos 0x8]
09:28:34.903840 204.179.137.61.49152 > 147.28.0.39.20: . ack 10137 win 17376 <nop,nop,timestamp 252714 128531707> (DF) [tos 0x8]
09:28:35.445385 147.28.0.39.20 > 204.179.137.61.49152: . 10137:11585(1448) ack 1 win 17376 <nop,nop,timestamp 128531755 252711> (DF) [tos 0x8]
09:28:35.503752 204.179.137.61.49152 > 147.28.0.39.20: . ack 11585 win 17376 <nop,nop,timestamp 252715 128531755> (DF) [tos 0x8]
09:28:36.615475 147.28.0.39.20 > 204.179.137.61.49152: . 11585:13033(1448) ack 1 win 17376 <nop,nop,timestamp 128531857 252713> (DF) [tos 0x8]
09:28:36.703808 204.179.137.61.49152 > 147.28.0.39.20: . ack 13033 win 17376 <nop,nop,timestamp 252717 128531857> (DF) [tos 0x8]
09:28:37.206061 147.28.0.39.20 > 204.179.137.61.49152: . 13033:14481(1448) ack 1 win 17376 <nop,nop,timestamp 128531857 252713> (DF) [tos 0x8]
09:28:37.303826 204.179.137.61.49152 > 147.28.0.39.20: . ack 14481 win 17376 <nop,nop,timestamp 252718 128531857> (DF) [tos 0x8]
09:28:37.465458 147.28.0.39.20 > 204.179.137.61.49152: . 14481:15929(1448) ack 1 win 17376 <nop,nop,timestamp 128531864 252714> (DF) [tos 0x8]
09:28:37.503830 204.179.137.61.49152 > 147.28.0.39.20: . ack 15929 win 17376 <nop,nop,timestamp 252719 128531864> (DF) [tos 0x8]
09:28:37.735460 147.28.0.39.20 > 204.179.137.61.49152: . 15929:17377(1448) ack 1 win 17376 <nop,nop,timestamp 128531982 252715> (DF) [tos 0x8]
09:28:37.903925 204.179.137.61.49152 > 147.28.0.39.20: . ack 17377 win 17376 <nop,nop,timestamp 252720 128531982> (DF) [tos 0x8]
09:28:38.335467 147.28.0.39.20 > 204.179.137.61.49152: . 17377:18825(1448) ack 1 win 17376 <nop,nop,timestamp 128532057 252717> (DF) [tos 0x8]
09:28:38.503862 204.179.137.61.49152 > 147.28.0.39.20: . ack 18825 win 17376 <nop,nop,timestamp 252721 128532057> (DF) [tos 0x8]
09:28:38.745216 147.28.0.39.20 > 204.179.137.61.49152: FP 18825:20248(1423) ack 1 win 17376 <nop,nop,timestamp 128532109 252718> (DF) [tos 0x8]
09:28:38.745297 204.179.137.61.49152 > 147.28.0.39.20: . ack 20249 win 15953 <nop,nop,timestamp 252721 128532109> (DF) [tos 0x8]
09:28:38.746658 204.179.137.61.49152 > 147.28.0.39.20: F 1:1(0) ack 20249 win 17376 <nop,nop,timestamp 252721 128532109> (DF) [tos 0x8]
09:28:38.746937 204.179.137.61.1329 > 147.28.0.39.21: P 109:129(20) ack 314 win 17376 <nop,nop,timestamp 252721 128507593> (DF) [tos 0x10]
09:28:39.405454 147.28.0.39.20 > 204.179.137.61.49152: . ack 2 win 17376 <nop,nop,timestamp 128532243 252721> (DF) [tos 0x8]
09:28:39.415372 147.28.0.39.21 > 204.179.137.61.1329: P 314:334(20) ack 129 win 17376 <nop,nop,timestamp 128532244 252721> (DF) [tos 0x10]
09:28:39.503877 204.179.137.61.1329 > 147.28.0.39.21: . ack 334 win 17376 <nop,nop,timestamp 252723 128532244> (DF) [tos 0x10]
09:28:43.904094 204.179.137.61.1332 > 192.96.22.18.25: S 2609119057:2609119057(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 252731 0> (DF)
randy
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