11-10-2003
hi
thanx, by the way, what the rule for find out the network address and broadcast address, if in this case, the IP address is class A, is it the 10.0.0.0 for network address, and 10.0.0.255 for broadcast address? what is the rule for that?
Thanx for help
10 More Discussions You Might Find Interesting
1. IP Networking
What is the significance of the broadcast address? (1 Reply)
Discussion started by: 98_1LE
1 Replies
2. Solaris
I have a bge1 card and a bge0 card, i want the broadcast addresses to match, ifconfig shows this
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
bge0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
... (1 Reply)
Discussion started by: csaunders
1 Replies
3. AIX
Hi, I try to understand how to configure my ethernet network in a hacmp cluster.
I have 2 nodes, 3 lan port on each node, and 1 service ip to cluster.
I don't have any serial o iscsi heartbeat.
Do you suggest me a possibile ip address configuration? I've many error whene I verify it from hacmp... (3 Replies)
Discussion started by: hacmp
3 Replies
4. Shell Programming and Scripting
Hi
Suppose
You have two computers. One named kenny which has an IP address of 192.168.0.7. kenny lives
on a subnet with a subnet mask of 255.255.255.240. The second computer is called zathras, which
has an IP address of 192.168.0.17, zathras lives on a network with the same subnet mask.
i)... (4 Replies)
Discussion started by: scofiled83
4 Replies
5. Solaris
hi,
I am trying to configure one of my interfaces, but after reboot - i lose the changes to the netmask & broadcast address.
I have added an entry in /etc/netmasks, but it doesnt pick up the new settings. any ideas - much appreciated.
before reboot:
eri0:... (3 Replies)
Discussion started by: badoshi
3 Replies
6. UNIX for Dummies Questions & Answers
:) Firstly Hi all!!, im NEW!! and on here hoping that someone might be able to offer me some help... i have a server that keeps crashing every few days with the error message:
PANIC KERNAL-MODE ADDRESS FAULT ON USER ADDRESS 0X14
KERNAL PAGE FAULT FROM (CS:EIP)=(100:EF71B5BD)
EAX=EF822000... (10 Replies)
Discussion started by: Twix
10 Replies
7. UNIX for Dummies Questions & Answers
Good morning!
Why would having a fake network device be useful?
Thanks in advance
Bigben (0 Replies)
Discussion started by: bigben1220
0 Replies
8. Shell Programming and Scripting
Hello,
I am running a post script in autoyast where I am trying to set the broadcast and network address.
I have the ip address and netmask already (reading from a file)..
I saw the post from fpmurphy but it is using ksh which isn't an option in autoyast.
Thanks in advance! (3 Replies)
Discussion started by: bloodclot
3 Replies
9. IP Networking
How would one approach the problem of determining the NAT tables of a router without knowing the userid and password. The only password holder died.
I know the internal ip address of the router is 192.168.2.1, and also ports 80 or 8080 and 3389 are open. (5 Replies)
Discussion started by: jgt
5 Replies
10. UNIX for Advanced & Expert Users
Hi ,
Could someone let me know how to detect duplicate ip address after assigning ip address to ethernet interface using c program (3 Replies)
Discussion started by: Gopi Krishna P
3 Replies
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)