More direct explanation of where the port number and protocol number to name

mappings come from.

ok dhartmei@ henning@

1 files changed, 16 insertions, 4 deletions

diff --git a/share/man/man5/pf.conf.5 b/share/man/man5/pf.conf.5
index a07eea96eb5..b49407bfc5c 100644
--- a/share/man/man5/pf.conf.5
+++ b/share/man/man5/pf.conf.5
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: pf.conf.5,v 1.159 2002/12/24 21:28:46 mcbride Exp $
+.\"	$OpenBSD: pf.conf.5,v 1.160 2002/12/28 22:15:47 mcbride Exp $
 .\"
 .\" Copyright (c) 2002, Daniel Hartmeier
 .\" All rights reserved.
@@ -711,8 +711,12 @@ Common protocols are
 .Xr tcp 4 ,
 .Xr udp 4 ,
 .Xr icmp 4 ,
-and
+and 
 .Xr icmp6 4 .
+For a list of all protocol name to number mappings used by
+.Xr pfctl 8 ,
+see the file
+.Em /etc/protocols .
 .It Pa from <source> port <source> to <dest> port <dest>
 The rule applies only to packets with the specified source and destination
 addresses and ports.
@@ -739,7 +743,15 @@ The ruleset does not need to be reloaded. This is especially
 useful with
 .Pa nat .
 .Pp
-Ports and ranges of ports can be specified using these operators:
+Ports can be specified either by number or by name.
+For example, port 80 can be specified as 
+.Pa www .
+For a list of all port name to number mappings used by
+.Xr pfctl 8 ,
+see the file
+.Em /etc/services .
+.Pp
+Ports and ranges of ports are specified by using these operators:
 .Bd -literal
     = (equal), != (unequal), < (lesser), <= (lesser or equal),
     > (greater), >= (greater or equal),
@@ -766,7 +778,7 @@ The host and port specifications are optional, as in the following examples:
     pass in proto tcp from any port <= 1024 to any
     pass in proto tcp from any to any port 25
     pass in proto tcp from 10.0.0.0/8 port > 1024 to \\
-	! 10.1.2.3 port != 22
+	! 10.1.2.3 port != ssh
 .Ed
 .It Pa all
 This is a short form for "from any to any".