Import interface groups from OpenBSD. This allows to group interfaces in

order to - for example - apply firewall rules to a whole group of
interfaces.  This is required for importing pf from OpenBSD 3.9

Obtained from:	OpenBSD (with changes)
Discussed on:	-net (back in April)

1 files changed, 21 insertions, 1 deletions

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index e1c2540..363ec78 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -28,7 +28,7 @@
 .\"     From: @(#)ifconfig.8	8.3 (Berkeley) 1/5/94
 .\" $FreeBSD$
 .\"
-.Dd February 27, 2006
+.Dd April 12, 2006
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -71,6 +71,8 @@
 .Op Fl u
 .Op Fl v
 .Op Fl C
+.Nm
+.Op Fl g Ar groupname
 .Sh DESCRIPTION
 The
 .Nm
@@ -178,6 +180,8 @@ parameter is a string of the form
 .Dq name unit ,
 for example,
 .Dq Li ed0 .
+.It Ar groupname
+List the interfaces in the given group.
 .El
 .Pp
 The following parameters may be set with
@@ -262,6 +266,22 @@ the system will not attempt to
 transmit messages through that interface.
 If possible, the interface will be reset to disable reception as well.
 This action does not automatically disable routes using the interface.
+.It Cm group Ar group-name
+Assign the interface to a
+.Dq group .
+Any interface can be in multiple groups.
+.Pp
+Cloned interfaces are members of their interface family group by default.
+For example, a PPP interface such as
+.Em ppp0
+is a member of the PPP interface family group,
+.Em ppp .
+.\" The interface(s) the default route(s) point to are members of the
+.\" .Em egress
+.\" interface group.
+.It Cm -group Ar group-name
+Remove the interface from the given
+.Dq group .
 .It Cm eui64
 (Inet6 only.)
 Fill interface index