Date: Mon, 14 May 2001 21:42:04 -0700 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: Doug Hardie <bc979@lafn.org> Cc: stable@FreeBSD.ORG Subject: Re: tcpdump problem with 4.3-Release Message-ID: <200105150442.f4F4gLw07243@cwsys.cwsent.com> In-Reply-To: Your message of "Mon, 14 May 2001 20:44:22 PDT." <f0433015fb72655fdacd3@[10.0.1.100]>
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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
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