?
Solved

How to List all ip addresses on ip block or subnet !?

Posted on 2012-04-11
5
Medium Priority
?
767 Views
Last Modified: 2012-04-22
Hello ,

i need to write small bash script to list in loop all possible ip addresses in specific subnet or ip block.

example 1 :
ip block 192.168.1.0/24 will list :
192.168.1.1 - 192.168.1.254

example2:
192.168.1.96/27
will list the following ip addresses :
192.168.1.97 - 192.168.1.126

exmple 3:
172.16.0.0 / 20
will list the following ip addresses :
172.16.0.1 - 172.16.15.254

thank you !
0
Comment
Question by:hintco
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 17

Accepted Solution

by:
Anuroopsundd earned 300 total points
ID: 37831998
0
 
LVL 4

Expert Comment

by:senseifedon
ID: 37839300
Hi;
Following script lists all possible ip address in range:

#!/bin/bash

is_alive_ping()
{
  ping -c 1 $1 > /dev/null
  [ $? -eq 0 ] && echo Node with IP: $i is up.
}

for i in 192.168.1.{1..255} 
do
is_alive_ping $i & disown
done

Open in new window


Then save the scipt as a named bash_ping_scan.sh

Execute the script file
./bash_ping_scan.sh

Open in new window


Sample output like this:

Node with IP: 192.168.1.1 is up.
Node with IP: 192.168.1.4 is up.
Node with IP: 192.168.1.9 is up.

Open in new window

0
 
LVL 4

Expert Comment

by:senseifedon
ID: 37845900
hintco are you there?
0
 
LVL 1

Author Comment

by:hintco
ID: 37850008
senseifedon
right but i need something general for any type of subnet and networks not just class C network with subnet /24

thank you !
0
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 37855938
--
0

Featured Post

7 Extremely Useful Linux Commands for Beginners

Just getting started with Linux? Here's a quick start guide that has 7 commands that we believe will come in handy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction We as admins face situation where we need to redirect websites to another. This may be required as a part of an upgrade keeping the old URL but website should be served from new URL. This document would brief you on different ways ca…
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
Suggested Courses
Course of the Month11 days, 18 hours left to enroll

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question