document the monitor flag.

reminded by benno@

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 7a29654..29f5c71 100644 (file)
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: ifconfig.8,v 1.361 2021/02/01 16:39:50 sthen Exp $
+.\"    $OpenBSD: ifconfig.8,v 1.362 2021/02/20 01:21:04 dlg Exp $
 .\"    $NetBSD: ifconfig.8,v 1.11 1996/01/04 21:27:29 pk Exp $
 .\"     $FreeBSD: ifconfig.8,v 1.16 1998/02/01 07:03:29 steve Exp $
 .\"
@@ -31,7 +31,7 @@
 .\"
 .\"     @(#)ifconfig.8 8.4 (Berkeley) 6/1/94
 .\"
-.Dd $Mdocdate: February 1 2021 $
+.Dd $Mdocdate: February 20 2021 $
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -414,6 +414,12 @@ modes.
 .It Cm -mode
 Select the mode automatically.
 This is the default for IEEE 802.11 wireless interfaces.
+.It Cm monitor
+Enable monitor mode on the interface, preventing the processing of
+incoming packets by the network stack.
+.It Cm -monitor
+Disable monitor mode on the interface, allowing the processing of
+incoming packets by the network stack.
 .It Cm mpls
 Enable Multiprotocol Label Switching (MPLS) on the interface,
 allowing it to send and receive MPLS traffic.