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Document half-open and full-open IPv4 octet ranges.

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david 2009-02-23 21:21:36 +00:00
parent 5d2393d115
commit b819aa7f25
1 changed files with 6 additions and 3 deletions
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9
docs/refguide.xml
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@ -187,8 +187,11 @@ address, you can specify a comma-separated list of numbers or ranges
for each octet. For example, 192.168.0-255.1-254 will skip all
addresses in the range that end in .0 or .255, and 192.168.3-5,7.1 will
scan the four addresses 192.168.3.1, 192.168.4.1, 192.168.5.1, and
192.168.7.1. Ranges need not be
limited to the final octets: the specifier
192.168.7.1. Either side of a range may be omitted; the default values
are 0 on the left and 255 on the right. Using <literal>-</literal> by
itself is the same as 0-255, but remember to use 0- in the first octet
so the target specification doesn't look like a command-line option.
Ranges need not be limited to the final octets: the specifier
0-255.0-255.13.37 will perform an Internet-wide scan for all IP
addresses ending in 13.37. This sort of broad sampling can be useful
for Internet surveys and research.</para>
@ -199,7 +202,7 @@ IPv6 because they are rarely useful.</para>
<para>Nmap accepts multiple host specifications on the command line,
and they don't need to be the same type. The command <command>nmap
scanme.nmap.org 192.168.0.0/8 10.0.0,1,3-7.0-255</command> does what
scanme.nmap.org 192.168.0.0/8 10.0.0,1,3-7.-</command> does what
you would expect.</para>
<para>While targets are usually specified on the command lines, the following options are also available to control target selection:</para>