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UNIX for Dummies Questions & Answers
How to check theip address on Redhat Linux 9
Post 302238496 by subhotech on Saturday 20th of September 2008 10:48:10 AM
09-20-2008
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LEARN ABOUT CENTOS
ipcalc
IPCALC(1) General Commands Manual 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
-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 net- works 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 <pbrown@redhat.com> IPv6 supported wedged in by David Cantrell <dcantrell@redhat.com> REPORTING BUGS
Report bugs at http://bugzilla.redhat.com/ COPYRIGHT
Copyright (C) 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 PARTICU- LAR PURPOSE. Red Hat, Inc. April 30 2001 IPCALC(1)