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Installation.md

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Instruction for installing & running ns2 in WSL2 (Windows Subsystem for Linux) on Windows 10 or (Windows 11)

Update WSL2

we need to update WSL2 to the latest version. To do this, open PowerShell as Administrator and run the following command:

wsl --set-default-version 2

Now update wsl

wsl --update

Install Ubuntu on WSL2

Open Microsoft Store and search for Ubuntu 20.4 (later releases don't work). Install it.

Install ns2 in Ubuntu

Open Ubuntu and run the following commands:

Update package list

sudo apt-get update

Install ns2 and its dependencies

sudo apt-get install ns2 nam tcl -y

Install xgraph

Open Ubuntu Terminal, Download xgraph package,

wget https://xgraph.org/linux/xgraph_4.38_linux64.tar.gz

(if this doesn't work try manually downloading from link)

Extract it

tar xvfz xgraph_4.38.tar.gz

Make alias for easy access

alias xgraph=/home/bart/XGraph/bin/xgraph

(or put it in bin/ directory)

Done!

Verify installation of each component

Run ns2

To run ns2, open Ubuntu and run the following command:

ns

Run nam

To run nam, open Ubuntu and run the following command:

nam

Run tcl

To run tcl, open Ubuntu and run the following command:

tclsh

Run xgraph

To run xgraph, open Ubuntu and run the following command:

xgraph

VSCode integration

To integrate ns2 with VSCode, install the following extensions:

  • WSL (ms-vscode-remote.remote-wsl)
  • TCL (mads-hartmann.tcl)

Now open VSCode and open (or create) the folder containing ns2 files. Then open the command palette (Ctrl+Shift+P) and run the command

"WSL: Reopen Folder in WSL".

This will open the project with WSL Ubuntu.

Run ns2 in VSCode

To run tcl file say ex.tcl , open Ubuntu and run the following command:

ns ex.tcl

If everything is installed correctly, you should see the expected output.

Troubleshooting

Xgraph not found

Error: libgtk2.0-0 not found

apt-get install libgtk2.0-0

Nam

Make sure you are using right version of ubuntu verify by following cmd in terminal

lsb_release -a

Output should be

Description:    Ubuntu 20.04 LTS
Release:        20.04
Codename:       focal

General

Make sure wsl is upto-date