Date: Mon, 14 May 2001 22:02:44 -0700 From: Doug Hardie <bc979@lafn.org> To: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> Cc: stable@FreeBSD.ORG Subject: Re: tcpdump problem with 4.3-Release Message-ID: <f04330163b72668b7128a@[10.0.1.100]> In-Reply-To: <200105150442.f4F4gLw07243@cwsys.cwsent.com> References: <200105150442.f4F4gLw07243@cwsys.cwsent.com>
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Thats the mode it seems to be in without that argument. Packets go through the system for some time, then you get a bunch listed. It used to output a line when the packet occurred. At 21:42 -0700 5/14/01, Cy Schubert - ITSD Open Systems Group wrote: >In message <f0433015fb72655fdacd3@[10.0.1.100]>, Doug Hardie writes: >> Is there a problem with tcpdump on 4.3-Release? On a system with >> very low packet rates, tcpdump never displays any packets. Its as if >> its in buffered mode. Eventually it will show traffic, but it >> appears that some of the packets are not actually displayed. On a >> system with lots of traffic, you see packets much faster, but they >> still look a bit sparce. ntop never sees anything on the low traffic >> system. > > -l Make stdout line buffered. Useful if you want to > see the data while capturing it. E.g., > ``tcpdump -l | tee dat'' or ``tcpdump -l > > dat & tail -f dat''. > > > >Regards, Phone: (250)387-8437 >Cy Schubert Fax: (250)387-5766 >Team Leader, Sun/Alpha Team Internet: Cy.Schubert@osg.gov.bc.ca >Open Systems Group, ITSD, ISTA >Province of BC -- -- Doug To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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