IPCALC

Section: User Commands (1)
Updated: April 30 2001
Index Return to Main Contents
 

NAME

ipcalc - perform simple manipulation of IP addresses  

SYNOPSIS

ipcalc [OPTION]... <IP address>[/prefix] [netmask]

 

DESCRIPTION

ipcalc provides a simple way to calculate IP information for a host. The various options specify what information ipcalc should display on standard out. Multiple options may be specified. An IP address to operate on must always be specified. Most operations also require a netmask or a CIDR prefix as well.

 

OPTIONS

-c, --check
Validate the IP address under the specified family. If no address family is specified, IPv4 is assumed.

-4, --ipv4
Specify IPv4 address family (default).

-6, --ipv6
Specify IPv6 address family.

-b, --broadcast
Display the broadcast address for the given IP address and netmask.

-h, --hostname
Display the hostname for the given IP address.

-m, --netmask
Calculate the netmask for the given IP address. It assumes that the IP address is in a complete class A, B, or C network. Many networks do not use the default netmasks, in which case an inappropriate value will be returned.

-p, --prefix
Show the prefix for the given mask/IP address.

-n, --network
Display the network address for the given IP address and netmask.

-s, --silent
Don't ever display error messages.

 

AUTHORS

Erik Troan <[email protected]>
Preston Brown <[email protected]>

IPv6 supported wedged in by David Cantrell <[email protected]>
 

REPORTING BUGS

Report bugs at http://bugzilla.redhat.com/  

COPYRIGHT

Copyright © 1997-2008 Red Hat, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHORS
REPORTING BUGS
COPYRIGHT

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Time: 05:29:05 GMT, December 24, 2015