- Add a description of IPv4->IPv6 translation rule.

kame/kame/natptconfig/natpt.conf.5

@@ -1,4 +1,4 @@
-.\"	$KAME: natpt.conf.5,v 1.7 2001/11/08 08:39:02 fujisawa Exp $
+.\"	$KAME: natpt.conf.5,v 1.8 2001/11/08 12:19:59 fujisawa Exp $
 .\"
 .\" Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 and 2001 WIDE Project.
 .\" All rights reserved.
@@ -132,7 +132,17 @@ Translate IPv4 packet to IPv6 packet.
 This format was changed to the format using
 .Sy daddr/dport .
 It is recommended not to use this format because this format may be
-abolished in the future.
+abolished in the future.  Use the following rule instead.
+.Pp
+.\"	map from daddr 10.21.32.252 to daddr 2001:0240:010a:5555:0260:08ff:feb0:96f4
+.It Xo Sy map from daddr Ar v4addr
+.Sy to daddr Ar v6addr
+.Xc
+Translate IPv4 packet to IPv6 packet.
+.Pp
+IPv4 packet destined to specified IPv4 address is translated to IPv6
+packet going to specified address.  This rule translate both source
+and destination address.
 .Pp
 .\"	map from 10.0.0.3/8 to 202.249.11.252 port 28672 - 32767
 .It Xo Sy map from