Date: Sat, 1 Feb 2003 01:56:22 +0200 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: "Stephen D. Kingrea" <reytech@sover.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: tcpdump irregularity Message-ID: <20030131235622.GB589@gothmog.gr> In-Reply-To: <Pine.BSI.4.21.0301311637440.7306-100000@granite.sover.net> References: <Pine.BSI.4.21.0301311637440.7306-100000@granite.sover.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On 2003-01-31 16:44, "Stephen D. Kingrea" <reytech@sover.net> wrote: > using 4.7 on a gateway designated machine (ipfw/natd) serving 3 > wstations. > > www#tcpdump -i dc0 ###in fact, any interface.... > tcpdump: (no devices found) /dev/bpf0: Device not configured Check that you have the following in your kernel config: $ grep -i bpf /usr/src/sys/i386/conf/GENERIC # The `bpf' device enables the Berkeley Packet Filter. device bpf # Berkeley packet filter $ Then make sure you have proper device nodes created in /dev by running (further down in your post you mentioned that you *do* have a /dev/bpf0 node, so this part is already done on your setup). # cd /dev # sh MAKEDEV bpf0 bpf1 [...] > now, i read somewhere that kernel must be compiled with option > PACKETFILTER, however; workstation running 4.7 with generic kernel > runs tcpdump perfectly. There is no PACKETFILTER kernel option afaik. When you want to know what options are available and how to enable them for your kernel you should consult the files GENERIC and LINT in /usr/src/sys/i386/conf. - Giorgos To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030131235622.GB589>