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Some systems with BPF have a cloning device; on those systems, you just

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open /dev/bpf.
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guy 2007-06-15 20:14:49 +00:00
parent 154fae938c
commit 6acec44344
1 changed files with 5 additions and 2 deletions
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tcpdump.1
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@ -1,4 +1,4 @@
.\" @(#) $Header: /tcpdump/master/tcpdump/Attic/tcpdump.1,v 1.183 2007-03-11 04:38:19 guy Exp $ (LBL)
.\" @(#) $Header: /tcpdump/master/tcpdump/Attic/tcpdump.1,v 1.184 2007-06-15 20:14:49 guy Exp $ (LBL)
.\"
.\" $NetBSD: tcpdump.8,v 1.9 2003/03/31 00:18:17 perry Exp $
.\"
@ -241,7 +241,10 @@ operation, be enabled on that interface.
.TP
.B Under BSD (this includes Mac OS X):
You must have read access to
.IR /dev/bpf* .
.I /dev/bpf*
on systems that don't have a cloning BPF device, or to
.I /dev/bpf
on systems that do.
On BSDs with a devfs (this includes Mac OS X), this might involve more
than just having somebody with super-user access setting the ownership
or permissions on the BPF devices - it might involve configuring devfs