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Installing NS-2.35 (Network Simulator 2) in Fedora 18

This post helps the developers to install NS-2.35 version in Fedora 18.


  • I have used GNOME Desktop with all softwares selected. See the image below
  • From Fedora 18, a new type of installer is designed as shown.


The default installer of Fedora 18 does not install all the softwares that are needed for X Software development, so we need to download those softwares.

Installation of NS-2.35

  • Open Terminal, Give the following command one by one
    • su (press enter and enter your root or super user password)
    • yum groupinstall "X Software Tools"
    • exit (to come out of root user mode)
  • Once installed, download the NS-2.35 allinone software from the following link.
  • Copy that file to /home/pradeep (This is my home folder)
  • Open terminal again and execute the following commands one by one
    • tar zxvf ns-allinone-2.35.tar.gz
    • cd ns-allinone-2.35
    • ./install (this is dot slash install)
  • You may possibly get one error during your installation is linkstate/ls.h error
  • If you get the above error, open the file (~ns-2.35/linkstate/ls.h) using gedit or any text editor
  • Go to line number 137 and change this line (void eraseAll() { erase(baseMap::begin(), baseMap::end()); })  to

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

  • again you try the command ./install and this time the installation will be successful.
  • Once installed the PATH information will be provided to you.
  • Copy the PATH and LD_LIBRARY_PATH Variable to /home/pradeep/.bash_profile (see a dot in the beginning)
  • Input the path information in .bash_profile file like this

    export PATH=$PATH:<Place your paths here>


    Once done, save the file and close

    execute the command

    source .bash_profile

    try ns or nam to see whether your installation succeeded.


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