[src/trunk]: src/sbin/route Add -tag description as suggested in PR/45071

[kefren <kefren%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0bfe367cd77f
branches:  trunk
changeset: 788848:0bfe367cd77f
user:      kefren <kefren%NetBSD.org@localhost>
date:      Wed Jul 24 06:28:10 2013 +0000

description:
Add -tag description as suggested in PR/45071

diffstat:

 sbin/route/route.8 |  17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)

diffs (39 lines):

diff -r 7618c852d7bf -r 0bfe367cd77f sbin/route/route.8
--- a/sbin/route/route.8        Wed Jul 24 04:41:49 2013 +0000
+++ b/sbin/route/route.8        Wed Jul 24 06:28:10 2013 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: route.8,v 1.47 2013/03/01 18:25:17 joerg Exp $
+.\"    $NetBSD: route.8,v 1.48 2013/07/24 06:28:10 kefren Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)route.8    8.4 (Berkeley) 6/1/94
 .\"
-.Dd February 5, 2013
+.Dd July 24, 2013
 .Dt ROUTE 8
 .Os
 .Sh NAME
@@ -242,11 +242,16 @@
 and the names must be numeric specifications rather than
 symbolic names.
 .Pp
-The optional modifiers
-.Fl mpls
-and
+The optional modifier
 .Fl tag
-specify that all subsequent addresses are in the
+specifies an address associated to the route.
+How the address is used is specific to the address family of
+the destination and the interface used to forward the packet.
+Currently route tags are consumed only by the
+.Xr mpls 4
+stack, therefore
+.Nm
+assumes that the subsequent addresses are in the
 .Tn MPLS
 address family.
 See