1IPCALC(1)                             RH                             IPCALC(1)
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NAME

6       ipcalc - perform simple manipulation of IP addresses
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SYNOPSIS

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

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

21       -b, --broadcast
22              Display  the  broadcast  address for the given IP address
23              and netmask.
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26       -h, --hostname
27              Display the hostname for the given IP address.
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30       -m, --netmask
31              Calculate the  netmask  for  the  given  IP  address.  It
32              assumes  that the IP address is in a complete class A, B,
33              or C network. Many networks do not use the  default  net‐
34              masks,  in  which  case  an  inappropriate  value will be
35              returned.
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38       -p, --prefix
39              Show the prefix for the given mask/IP address.
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42       -n, --network
43              Display the network address for the given IP address  and
44              netmask.
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47       -s, --silent
48              Don't ever display error messages.
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AUTHORS

52       Erik Troan <ewt@redhat.com>
53       Preston Brown <pbrown@redhat.com>
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REPORTING BUGS

56       Report  bugs  to  our  bugtracking  system: http://bugzilla.red‐
57       hat.com/bugzilla.
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60       Copyright © 1997-2001 Red Hat, Inc.
61       This is free software; see the source  for  copying  conditions.
62       There  is  NO  warranty; not even for MERCHANTABILITY or FITNESS
63       FOR A PARTICULAR PURPOSE.
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67Red Hat, Inc.                    April 30 2001                       IPCALC(1)
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