Date: Tue, 18 Aug 1998 10:58:15 +0200 From: "Kevin Kyeong-il CHOI" <kevin.choi@cnes.fr> To: "FreeBSD Question" <freebsd-questions@FreeBSD.ORG>, "FreeBSD Net" <freebsd-net@FreeBSD.ORG> Subject: Questions on TCPDUMP, TCP Window Size Message-ID: <000501bdca86$55eac6c0$52099584@pc-kichoi.cst.cnes.fr>
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This is a multi-part message in MIME format. ------=_NextPart_000_0006_01BDCA97.197396C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hi, I have another question. I'm actually working on the TCP observation. I saw the article http://www.psc.edu/networking/perf_tune.html Then, I tried to change the system variables of FreeBSD 2.2.6 to obtain a large TCP window size. (1) First question. I want to make the RFC1323 works on FreeBSD 2.2.6. Is there any special procedure I need to do ? (2) Second. Once the (1) question resolved, How can I make TCP's option "Window Scale" work on any connection such as FTP ? (3) Third TCPDUMP, as a real good utility to observe the traffic on TCP connection, I really want to use this. BUT, But, whenever I launch this "tcpdump [enter]", it tells me, tcpdump: /dev/bpf0: Device not configured. I tried to change chmod 666 /dev/bpf0, but no succeed. What is the problem here ? Thanks for everyone who answer me... :) ------------------------------------- Kevin Kyeong-il CHOI ~'/ (o\) ^ \___/o Doctoral Research Engineer Service DEE/IR/TL/ES Centre National d'Etudes Spatiales 18 Avenue Edouard-Belin 31401 Toulouse cedex 4 France (T) +33-561 28 15 31 (F) +33-561 28 29 13 (Email) kevin.choi@cnes.fr ------------------------------------- ------=_NextPart_000_0006_01BDCA97.197396C0 Content-Type: application/octet-stream; name="Kevin Kyeong-il CHOI.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Kevin Kyeong-il CHOI.vcf" BEGIN:VCARD VERSION:2.1 N:CHOI;Kevin;Kyeong-il;; FN:Kevin Kyeong-il CHOI ORG:CNES; TITLE:Dr TEL;WORK;VOICE:(05) 61 28 15 31 TEL;HOME;VOICE:(05) 62 17 01 99 EMAIL;PREF;INTERNET:kevin.choi@cnes.fr REV:19980710T091856Z END:VCARD ------=_NextPart_000_0006_01BDCA97.197396C0-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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