Date: Thu, 25 Jun 1998 23:14:49 -0400 (EDT) From: Open Systems Networking <opsys@mail.webspan.net> To: freebsd-net@FreeBSD.ORG Subject: aborted web connections ? Message-ID: <Pine.BSF.3.95.980625225811.16231A-100000@orion.webspan.net>
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Ive noticed this several times now. I cant seem to figure out what causes it cause im not logging with tcpdump. But I have noticed that when I abort web conenctions sometimes it gets wedged in a loop with whoever I was connecting to, and it winds up creating a "flooding" action and totally nukes my poor ppp link. It seems to happen with linux boxes. Ive included tcpdump output below. So read on at your own risk. Is there anyway to "patch" this or a sysctl to disable to keep this from happening its rather annoying. This is a 3.0-current box BTW. 22:05:58.527822 206.252.171.10.4623 > 128.183.250.18.ftp-data: . ack 43801 win 17520 (DF) (ttl 64, id 41346) 22:05:58.729163 147.155.137.28.http > 206.252.171.10.4616: . 265064:266524(1460) ack 1 win 31744 (ttl 53, id 5345) 22:05:58.927804 206.252.171.10.4616 > 147.155.137.28.http: . ack 266524 win 17520 (DF) (ttl 64, id 41347) 22:05:59.119064 147.155.137.28.http > 206.252.171.10.4616: . 266524:267984(1460) ack 1 win 31744 (ttl 53, id 5346) 22:05:59.127815 206.252.171.10.4616 > 147.155.137.28.http: . ack 267984 win 17520 (DF) (ttl 64, id 41348) 22:05:59.348774 147.155.137.28.http > 206.252.171.10.4616: P 267984:268876(892) ack 1 win 31744 (DF) (ttl 53, id 5347) 22:06:02.127722 206.252.171.10.4616 > 147.155.137.28.http: . ack 278528 win 17520 (DF) (ttl 64, id 41357) 22:06:02.298999 147.155.137.28.http > 206.252.171.10.4617: . 131072:132532(1460) ack 1 win 31744 (DF) (ttl 53, id 5355) 22:06:02.327750 206.252.171.10.4617 > 147.155.137.28.http: . ack 132532 win 17520 (DF) (ttl 64, id 41358) 22:06:02.658828 147.155.137.28.http > 206.252.171.10.4617: . 132532:133992(1460) ack 1 win 31744 (DF) (ttl 53, id 5356) 22:06:02.727653 206.252.171.10.4617 > 147.155.137.28.http: . ack 133992 win 17520 (DF) (ttl 64, id 41359) 22:06:02.988706 147.155.137.28.http > 206.252.171.10.4617: . 133992:135452(1460) ack 1 win 31744 (DF) (ttl 53, id 5357) 22:06:03.127658 206.252.171.10.4617 > 147.155.137.28.http: . ack 135452 win 17520 (DF) (ttl 64, id 41360) 22:06:03.379003 147.155.137.28.http > 206.252.171.10.4616: . 278528:279988(1460) ack 1 win 31744 (ttl 53, id 5358) 22:06:03.527637 206.252.171.10.4616 > 147.155.137.28.http: . ack 279988 win 17520 (DF) (ttl 64, id 41361) 22:06:03.768710 147.155.137.28.http > 206.252.171.10.4616: . 279988:281448(1460) ack 1 win 31744 (ttl 53, id 5359) 22:06:03.927615 206.252.171.10.4616 > 147.155.137.28.http: . ack 281448 win 17520 (DF) (ttl 64, id 41362) 22:06:04.128768 147.155.137.28.http > 206.252.171.10.4619: . 252493:253953(1460) ack 0 win 31744 (ttl 53, id 5360) 22:06:04.327623 206.252.171.10.4619 > 147.155.137.28.http: . ack 253953 win 17520 (DF) (ttl 64, id 41363) 22:06:04.518920 147.155.137.28.http > 206.252.171.10.4619: . 253953:255413(1460) ack 0 win 31744 (ttl 53, id 5361) 22:06:04.527618 206.252.171.10.4619 > 147.155.137.28.http: . ack 255413 win 17520 (DF) (ttl 64, id 41364) 22:06:04.908681 147.155.137.28.http > 206.252.171.10.4617: . 135452:136912(1460) ack 1 win 31744 (ttl 53, id 5362) 22:06:04..927575 206.252.171.10.4617 > 147.155.137.28.http: . ack 136912 win 17520 (DF) (ttl 64, id 41365) 22:06:05.268844 147.155.137.28.http > 206.252.171.10.4619: . 255413:256873(1460) ack 0 win 31744 (ttl 53, id 5363) 22:06:05.327661 206.252.171.10.4619 > 147.155.137.28.http: . ack 256873 win 17520 (DF) (ttl 64, id 41366) 22:06:05.658729 147.155.137.28.http > 206.252.171.10.4619: . 256873:258333(1460) ack 0 win 31744 (ttl 53, id 5364) 22:06:05.727579 206.252.171.10.4619 > 147.155.137.28.http: . ack 258333 win 17520 (DF) (ttl 64, id 41367) 22:06:06.018713 147.155.137.28.http > 206.252.171.10.4619: . 258333:259793(1460) ack 0 win 31744 (ttl 53, id 5365) 22:06:06.127535 206.252.171.10.4619 > 147.155.137.28.http: . ack 259793 win 17520 (DF) (ttl 64, id 41368) 22:06:06.268623 147.155.137.28.http > 206.252.171.10.4619: P 259793:260685(892) ack 0 win 31744 (DF) (ttl 53, id 5366) 22:06:06.327537 206.252.171.10.4619 > 147.155.137.28.http: . ack 260685 win 17520 (DF) (ttl 64, id 41369) 22:06:06.658673 147.155.137.28.http > 206.252.171.10.4619: . 260685:262145(1460) ack 0 win 31744 (ttl 53, id 5367) 22:06:06.727562 206.252.171.10.4619 > 147.155.137.28.http: . ack 262145 win 17520 (DF) (ttl 64, id 41370) 22:06:07.020933 147.155.137.28.http > 206.252.171.10.4619: . 262145:263605(1460) ack 0 win 31744 (ttl 53, id 5368) 22:06:07.127501 206.252.171.10.4619 > 147.155.137.28.http: . ack 263605 win 17520 (DF) (ttl 64, id 41371) 22:06:07.408738 147.155.137.28.http > 206.252.171.10.4619: . 263605:265065(1460) ack 0 win 31744 (ttl 53, id 5369) 22:06:07.527490 206.252.171.10.4619 > 147.155.137.28.http: . ack 265065 win 17520 (DF) (ttl 64, id 41372) 22:06:07.768567 147.155.137.28.http > 206.252.171.10.4619: . 265065:266525(1460) ack 0 win 31744 (ttl 53, id 5370) 22:06:07.927486 206.252.171.10.4619 > 147.155.137.28.http: . ack 266525 win 17520 (DF) (ttl 64, id 41373) -- "Linux... 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