Document carp(4) arguments.

PR:		docs/92653
Submitted by:	Jeremy C. Reed <reed@reedmedia.net>
Reviewed by:	ru
Approved by:	trhodes (mentor)
MFC after:	5 days

1 files changed, 26 insertions, 1 deletions

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 7c086fcab5a2..dab8b517b811 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 December 26, 2005
+.Dd February 2, 2006
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -1289,6 +1289,31 @@ The
 argument is useless and hence deprecated.
 .El
 .Pp
+The following parameters are specific to
+.Xr carp 4
+interfaces:
+.Bl -tag -width indent
+.It Cm advbase Ar seconds
+Specifies the base of the advertisement interval in seconds.
+The acceptable values are 1 to 255.
+The default value is 1.
+.\" The default value is
+.\" .Dv CARP_DFLTINTV .
+.It Cm advskew Ar interval
+Specifies the skew to add to the base advertisement interval to
+make one host advertise slower than another host.
+It is specified in 1/256 of seconds.
+The acceptable values are 1 to 254.
+The default value is 0.
+.It Cm pass Ar phrase
+Set the authentication key to
+.Ar phrase .
+.It Cm vhid Ar n
+Set the virtual host ID.
+This is a required setting.
+Acceptable values are 1 to 255.
+.El
+.Pp
 The
 .Nm
 utility displays the current configuration for a network interface