ipcalc

IPCALC(1)			      RH			    IPCALC(1)



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
       -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  net-
	      masks,  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 <ewt@redhat.com>
       Preston Brown <pbrown@redhat.com>

REPORTING BUGS
       Report  bugs  to	 our  bugtracking system: http://bugzilla.red-
       hat.com/bugzilla.

COPYRIGHT
       Copyright © 1997-2001 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.



Red Hat, Inc.			April 30 2001			    IPCALC(1)