Date: Wed, 24 Mar 2004 12:56:30 -0800 From: "Kevin Oberman" <oberman@es.net> To: MaNUaL <manual3000@yahoo.com> Cc: freebsd-current@freebsd.org Subject: Re: Berkeley packet filter device in kernel config Message-ID: <20040324205630.BBEE45D0A@ptavv.es.net> In-Reply-To: Your message of "Wed, 24 Mar 2004 11:33:08 PST." <20040324193308.10312.qmail@web40613.mail.yahoo.com>
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> Date: Wed, 24 Mar 2004 11:33:08 -0800 (PST) > From: MaNUaL <manual3000@yahoo.com> > Sender: owner-freebsd-current@freebsd.org > > Hi. I am using 5.2.1-RELEASE-p3 and in the GENERIC > configuration file of the kernel in > /usr/src/sys/i386/conf there is the following line: > > device bpf # Berkeley packet filter > > Though, in the FreeBSD handbook it says: > > pseudo-device bpf # Berkeley packet filter > > I have used "device bpf" but there is no /dev/bpf* at > all... > > Am i missing something here? How should i define this? > pseudo-device or device? In V4 it's a pseudo-device. In V5, it's a device. In V5 devices are created by devfs and are dynamic. As a result, if you are not using any filer devices, they won't exist. Try running a tcpdump and, while it's running do 'ls /dev/bpf*'. Kill the tcpdump and do it again. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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