NS3 or Network simulation version 3 is a kind of technology that simulates the network behavior through mathematical modeling and statistical analysis method and then obtains the specific parameters which reflect the characteristics of the network. NS is one of the most famous network simulation software which was developed by LBNL network research group at UC Berkeley in the USA.
Now I would like to introduce how to deploy NS3 on Ubuntu Linux 10.10
Prerequisites
The following list of packages should be accurate for Ubuntu 10.10 release.
requirements for C++ (release)
sudo apt-get install gcc g++ python
requirements for Python (release)
sudo apt-get install gcc g++ python python-dev
Mercurial:
sudo apt-get install mercurial
python bindings:
Debugging
sudo apt-get install gdb valgrind
GNU Scientific Library (GSL):
sudo apt-get install gsl-bin libgsl0-dev libgsl0ldbl
The Network Simulation Cradle (nsc):
sudo apt-get install flex bison
To read pcap packet traces:
sudo apt-get install tcpdump
Sqlite for statistics framework
sudo apt-get install sqlite sqlite3 libsqlite3-dev
Xml-based version of the config store
sudo apt-get install libxml2 libxml2-dev
A GTK-based
sudo apt-get install libgtk2.0-0 libgtk2.0-dev
To experiment with virtual machines and ns-3
sudo apt-get install vtun lxc
utils/check-style.py code style check program
sudo apt-get install uncrustify
Doxygen
sudo apt-get install doxygen graphviz imagemagick
sudo apt-get install texlive texlive-latex-extra texlive-generic-extra texlive-generic recommended
Texinfo
sudo apt-get install texinfo dia texlive texlive-latex-extra texlive-extra-utils texlive-generic-recommended texi2html
ustavo Carneiro's ns-3-pyviz visualizer
sudo apt-get install python-pygraphviz python-kiwi python-pygoocanvas libgoocanvas-dev
Installation
Now we can start to install NS3. Firstly we download ns-allinone-3.9.tar.bz2 file and put on a specific folder such as repos
wget http://www.nsnam.org/releases/ns-allinone-3.9.tar.bz2
Extract ns-allinone-3.9.tar.bz2
tar xjf ns-allinone-3.9.tar.bz2
Change to directory ns-allinone-3.9 and build NS3
If success, you can see output messages displayed as below
'build' finished successfully (..)
Leaving directory './ns-3.9'
ns-3.9 is a folder of NS3 codes and scripts
Testing
After installation, you can test that your NS3 works or not.
Change to directory NS build ( in my case, ns-3.9) and run test script as below
If success, you can see picture as below
Then you can develop NS3 program for simulating 
.