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When addr/mask examples are given, show both a host and network

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address, to avoid confusing the users that a full address is
always required.

Submitted by:   Josh Paetzel <josh@tcbug.org> (through freebsd-doc)
MFC after:	3 days
This commit is contained in:
Giorgos Keramidas 2006-10-04 19:29:05 +00:00
parent c10b34ed19
commit 223ccb5450
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=163012
1 changed files with 6 additions and 5 deletions
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11
sbin/ipfw/ipfw.8
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@ -951,20 +951,20 @@ Hostnames are resolved at the time the rule is added to the firewall list.
.It Ar addr Ns / Ns Ar masklen
Matches all addresses with base
.Ar addr
(specified as an IP address or a hostname)
(specified as an IP address, a network number, or a hostname)
and mask width of
.Cm masklen
bits.
As an example, 1.2.3.4/25 will match
As an example, 1.2.3.4/25 or 1.2.3.0/25 will match
all IP numbers from 1.2.3.0 to 1.2.3.127 .
.It Ar addr Ns : Ns Ar mask
Matches all addresses with base
.Ar addr
(specified as an IP address or a hostname)
(specified as an IP address, a network number, or a hostname)
and the mask of
.Ar mask ,
specified as a dotted quad.
As an example, 1.2.3.4:255.0.255.0 will match
As an example, 1.2.3.4:255.0.255.0 or 1.0.3.0:255.0.255.0 will match
1.*.3.*.
This form is advised only for non-contiguous
masks.
@ -977,7 +977,7 @@ error-prone.
.It Ar list : Bro Ar num | num-num Brc Ns Op Ns , Ns Ar list
Matches all addresses with base address
.Ar addr
(specified as an IP address or a hostname)
(specified as an IP address, a network number, or a hostname)
and whose last byte is in the list between braces { } .
Note that there must be no spaces between braces and
numbers (spaces after commas are allowed).
@ -997,6 +997,7 @@ bitmask, it takes constant time and dramatically reduces
the complexity of rulesets.
.br
As an example, an address specified as 1.2.3.4/24{128,35-55,89}
or 1.2.3.0/24{128,35-55,89}
will match the following IP addresses:
.br
1.2.3.128, 1.2.3.35 to 1.2.3.55, 1.2.3.89 .