Date: Tue, 5 Sep 2000 13:30:54 +0200 (CEST) From: Philippe CASIDY <pcasidy@worldnet.fr> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Weird TCP problem Message-ID: <200009051130.NAA98098@greatoak.home>
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Hi! I use an ISDN router to connect to the Internet. This is a Cisco 3C891. I can configure its parameters by using a Web Browser on its IP adress: 192.168.1.1. Then to be able to configure, I have to submit a password. It used to work fine for years but since 4.0R has been released (not sure it is related with but certainly), after I submit a password, netscape (or Lynx or mozilla) tells me that it is waiting for a reply from my router. And it waits forever (I waited up to 5 minutes). I have made a search in the mailing lists with no success. My current operating system is FreeBSD 4.1Stable as of september the 2nd ans still the problem occurs. Here is the output of a tcpdump I made: (note: home the is name of my domain and LANmodem is the name of the router.) greatoak# tcpdump host greatoak and 192.168.1.1 tcpdump: listening on ed0 12:56:44.637794 greatoak.1069 > LANmodem.home.http: S 1776294683:1776294683(0) win 16384 <mss 1460> (DF) 12:56:44.641040 LANmodem.home.http > greatoak.1069: S 247680000:247680000(0) ack 1776294684 win 4096 <mss 1460> 12:56:44.641144 greatoak.1069 > LANmodem.home.http: . ack 1 win 17520 (DF) 12:56:44.642485 greatoak.1069 > LANmodem.home.http: P 1:289(288) ack 1 win 17520 (DF) 12:56:44.670356 LANmodem.home.http > greatoak.1069: P 1:60(59) ack 289 win 4096 12:56:44.680707 LANmodem.home.http > greatoak.1069: FP 60:801(741) ack 289 win 4096 12:56:44.680809 greatoak.1069 > LANmodem.home.http: . ack 802 win 16779 (DF) 12:56:44.740355 greatoak.1069 > LANmodem.home.http: F 289:289(0) ack 802 win 17520 (DF) 12:56:44.742548 LANmodem.home.http > greatoak.1069: . ack 290 win 4095 12:56:45.303108 greatoak.ansoft-lm-2 > LANmodem.home.domain: 58490+ PTR? 1.1.168.192.in-addr.arpa. (42) 12:56:45.314165 LANmodem.home.domain > greatoak.ansoft-lm-2: 58490* 1/0/0 PTR . (69) 12:56:45.737546 greatoak.1070 > LANmodem.home.http: S 1776603511:1776603511(0) win 16384 <mss 1460> (DF) 12:56:45.740801 LANmodem.home.http > greatoak.1070: S 247872000:247872000(0) ack 1776603512 win 4096 <mss 1460> 12:56:45.740909 greatoak.1070 > LANmodem.home.http: . ack 1 win 17520 (DF) 12:56:45.741368 greatoak.1070 > LANmodem.home.http: P 1:331(330) ack 1 win 17520 (DF) 12:56:45.771961 LANmodem.home.http > greatoak.1070: P 1:64(63) ack 331 win 409612:56:45.772730 greatoak.1070 > LANmodem.home.http: F 331:331(0) ack 64 win 17520 (DF) 12:56:45.773367 greatoak.1071 > LANmodem.home.http: S 1776673679:1776673679(0) win 16384 <mss 1460> (DF) 12:56:45.775508 LANmodem.home.http > greatoak.1070: . ack 332 win 4096 12:56:45.778336 LANmodem.home.http > greatoak.1071: S 247936000:247936000(0) ack 1776673680 win 4096 <mss 1460> 12:56:45.778428 greatoak.1071 > LANmodem.home.http: . ack 1 win 17520 (DF) 12:56:45.778905 greatoak.1071 > LANmodem.home.http: P 1:329(328) ack 1 win 17520 (DF) 12:56:45.787913 LANmodem.home.http > greatoak.1070: F 64:64(0) ack 332 win 4096 12:56:45.788010 greatoak.1070 > LANmodem.home.http: . ack 65 win 17520 (DF) 12:56:45.804854 LANmodem.home.http > greatoak.1071: . ack 329 win 4096 12:56:45.820468 LANmodem.home.http > greatoak.1071: P 1:675(674) ack 329 win 4096 12:56:45.825943 LANmodem.home.http > greatoak.1071: F 675:675(0) ack 329 win 4096 12:56:45.826036 greatoak.1071 > LANmodem.home.http: . ack 676 win 17106 (DF) 12:56:45.862642 greatoak.1071 > LANmodem.home.http: F 329:329(0) ack 676 win 17520 (DF) 12:56:45.864832 LANmodem.home.http > greatoak.1071: . ack 330 win 4095 12:56:48.921359 greatoak.1072 > LANmodem.home.http: S 1777476742:1777476742(0) win 16384 <mss 1460> (DF) 12:56:48.924634 LANmodem.home.http > greatoak.1072: S 248384000:248384000(0) ack 1777476743 win 4096 <mss 1460> 12:56:48.924743 greatoak.1072 > LANmodem.home.http: . ack 1 win 17520 (DF) 12:56:48.927445 greatoak.1072 > LANmodem.home.http: P 1:338(337) ack 1 win 17520 (DF) 12:56:48.958292 LANmodem.home.http > greatoak.1072: P 1:1038(1037) ack 338 win 4096 12:56:48.963463 LANmodem.home.http > greatoak.1072: F 1038:1038(0) ack 338 win 4096 12:56:48.963551 greatoak.1072 > LANmodem.home.http: . ack 1039 win 16743 (DF) 12:56:49.029029 greatoak.1072 > LANmodem.home.http: F 338:338(0) ack 1039 win 17520 (DF) 12:56:49.031219 LANmodem.home.http > greatoak.1072: . ack 339 win 4095 <here is the moment when I click on the submit button> 12:57:14.044929 greatoak.1073 > LANmodem.home.http: S 1782141439:1782141439(0) win 16384 <mss 1460> (DF) 12:57:14.048204 LANmodem.home.http > greatoak.1073: S 251648000:251648000(0) ack 1782141440 win 4096 <mss 1460> 12:57:14.048299 greatoak.1073 > LANmodem.home.http: . ack 1 win 17520 (DF) 12:57:14.059935 greatoak.1073 > LANmodem.home.http: P 1:336(335) ack 1 win 17520 (DF) 12:57:14.203965 LANmodem.home.http > greatoak.1073: . ack 336 win 4096 12:57:14.204092 greatoak.1073 > LANmodem.home.http: P 336:436(100) ack 1 win 17520 (DF) 12:57:14.403633 LANmodem.home.http > greatoak.1073: . ack 436 win 4096 ^C 46 packets received by filter 0 packets dropped by kernel Currently, when I need to configure it, I reboot my machine under Windows and use IE. It works then. I have another machine with Windows therefore I can also provide a tcpdump between Windows and the modem if needed. Thanks for any help! Phil. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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