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 Readme for:  Network » Misc » ipcalc.lha

Ipcalc

Description: IP Address Calculator
Download: ipcalc.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 9kb
Version: 0.2
Date: 07 Jun 2010
Author: Urs-Jakob Rueetschi
Submitter: fanta
Homepage: http://www.geo.uzh.ch/~uruetsch/software/simple/ipcalc.html
Category: network/misc
License: Other
Distribute: yes
Min OS Version: 4.0
FileID: 5603
 
Snapshots:
 
Comments: 0
Snapshots: 1
Videos: 0
Downloads: 287  (Current version)
287  (Accumulated)
Votes: 0 (0/0)  (30 days/7 days)

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ipcalc - IP Address Calculator

Usage: ipcalc [-v] [-a|b|m|n|p] ip-addr

This program, given an IP address and optional netmask, shows the address,
netmask, network and broadcast address in dotted decimal and binary form.
Additionally, the value slash-n is printed and whether it is a private internet
address according to RFC 1918.

Using command line options, the output can be reduced to a very specific piece
of information being printed to standard output. This is useful for scripting.

The mandatory argument ip-addr is an IPv4 address in dotted decimal notation,
optionally followed by a slash (/) and a netmask in CIDR or dotted decimal
notation. Examples:

ipcalc 130.60.16.123
ipcalc 130.60.16.123/24              # CIDR notation
ipcalc 130.60.16.123/255.255.255.0   # address with netmask

The option -v makes ipcalc print its version number; the other options make
ipcalc print only very specific pieces of information about ip-addr to standard
output:

-a    address in CIDR notation
-b    broadcast address
-m    netmask
-n    network address
-p    return 0 if private internet address, otherwise return 1. 

Examples:

$ ipcalc -a 130.60.16.123
130.60.16.123/16
$ ipcalc -a 130.60.16.123/255.255.255.0
130.60.16.123/24



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