Install Ns2.35 on Ubuntu 14.04 (step by step)

This installation guide is on  Ubuntu 14.04

Note* (all commands are in red color)

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[step 1]
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   First Download NS2 source file from here.Then you will get a file   named “ns-allinone-2.35.tar.gz“

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[step 2]
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 copy  ns-allinone-2.35.tar.gz file to location you want.

In my case i am keeping it in my home folder(/home/mahesh/).

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[step 3]
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 From terminal go to the folder where the ns-allinone file  is placed and type the following command to  extract
  
       tar -xzf ns-allinone-2.35.tar.gz 

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[step 4]
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 We need to do changes in ls.h file to avoid installation error
 

go to ns-allinone-2.35/ns-2.35/linkstate/ls.h

use following two commands

cd ns-allinone-2.35/ns-2.35/linkstate/ls.h

gedit ls.h

this will open ls.h file in editor

now replace  line 137 

i.e.  void eraseAll() {erase(baseMap::begin(), baseMap::end()); } 

with  following line

void eraseAll() {this->erase(baseMap::begin(), baseMap::end()); }

 save it and close the editor.
 
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[step 5]
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 Before installation we need to update  system packages and install some essential softwares:(needs internet connection)

use following command one by one

sudo apt-get update

sudo apt-get install build-essential autoconf automake

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[step 6]
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 Now we are ready to install ns2. Go to the  ns-allineone-2.35/ directory. Use the following two commands:

 

cd ns-allinone-2.35

./install

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[step 7]
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  Set the environment variable to tell the system, where the files for ns2 are installed .We need to add following lines at the end of .bashrc file.

Note : Replace /home/mahesh/ with the path where you have kept  
 ns-allinone-2.35

Type following command

gedit ~/.bashrc

Lines to be added are:

# LD_LIBRARY_PATH

OTCL_LIB=/home/mahesh/ns-allinone-2.35/otcl-1.14

NS2_LIB=/home/mahesh/ns-allinone-2.35/lib

X11_LIB=/usr/X11R6/lib

USR_LOCAL_LIB=/usr/local/lib

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$OTCL_LIB:$NS2_LIB:$X11_LIB:$USR_LOCAL_LIB

# TCL_LIBRARY

TCL_LIB=/home/mahesh/ns-allinone-2.35/tcl8.5.10/library

USR_LIB=/usr/lib

export TCL_LIBRARY=$TCL_LIB:$USR_LIB

# PATH

NS=/home/mahesh/ns-allinone-2.35/ns-2.35/

NAM=/home/mahesh/ns-allinone-2.35/nam-1.15/

PATH=$PATH:$NS:$NAM


 save the file. 

 

 Type ns in terminal

 

 ns

 It will show % symbol.Thats all, you have successfully installed ns2.

 

 Best Luck.