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 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 <ewt@redhat.com>
Preston Brown <
REPORTING BUGS
Report bugs to our bugtracking system:
http://bugzilla.redhat.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.