1 .\" $OpenBSD: pflog.4,v 1.4 2003/09/22 04:53:15 jmc Exp $
3 .\" Copyright (c) 2001 Tobias Weingartner
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31 .Nd packet filter logging interface
33 .Sy pseudo-device Nm pflog Em <number>
37 interface is the interface the packet filter,
39 copies all the packets to which it has been configured to log.
40 In this way, all logged packets can easily be monitored in real
47 Each packet retrieved on this interface has a header associated
50 This header documents the address family, interface name, rule
51 number, reason, action, and direction of the packet that was logged.
52 This structure, defined in
55 .Bd -literal -offset indent
61 char ifname[IFNAMSIZ];
62 char ruleset[PF_RULESET_NAME_SIZE];
70 .Bd -literal -offset indent
72 # tcpdump -n -e -ttt -i pflog0
85 device first appeared in