Date: Thu, 28 Jan 1999 19:35:42 -0800 From: "Jan B. Koum " <jkb@best.com> To: dmaddox@conterra.com, net@FreeBSD.ORG Subject: Re: Why does tcpdump not see tun0 when loaded as a kld? Message-ID: <19990128193542.C25932@best.com> In-Reply-To: <19990128213212.A2442@dmaddox.conterra.com>; from Donald J . Maddox on Thu, Jan 28, 1999 at 09:32:12PM -0500 References: <19990128213212.A2442@dmaddox.conterra.com>
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On Thu, Jan 28, 1999 at 09:32:12PM -0500, "Donald J . Maddox" <dmaddox@conterra.com> wrote: > I recently decided to try building a kernel without static tun0, > and use the kld module instead. Unfortunately, I am seeing this: > > # ifconfig -a > lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500 > ds0: flags=8201<UP,ALLMULTI,MULTICAST> mtu 65532 > inet 10.0.0.1 netmask 0xff000000 > tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500 > inet 209.12.169.48 --> 209.12.169.2 netmask 0xffffff00 > tun1: flags=8010<POINTOPOINT,MULTICAST> mtu 1500 > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet 127.0.0.1 netmask 0xff000000 > > # tcpdump -i tun0 > tcpdump: tun0: Device not configured > > Does tun0 _have_ to be compiled in statically for tcpdump to see > it? > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message Because bpf attaches to devices during the boot time. Look in /usr/src/sys/net/bpf.c around line 1239 in bpfattach() Can someone confirm since I am not sure myself if that is true? -- Yan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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