---
tags: ns3, centos,centos7,linux
title: NS-3.25 on Centos 7
description: Install NS-3.25 with VLC module on a Centos 7 virtual machine
GA: UA-167433668-1
image: https://wiki.centos.org/moin_static1910/common/centos.png
---
# Installation: Centos 7 + NS3
# Install Centos 7
- Using:
- VMWare Workstation Player 15
- quad-core, 4GB RAM, 40GB disk
1. minimal install
2. install gui [:link:](https://www.centos.org/forums/viewtopic.php?f=47&t=47088&start=10)

    yum groupinstall "X Window System"
    yum install gnome-classic-session gnome-terminal nautilus-open-terminal control-center liberation-mono-fonts
    unlink /etc/systemd/system/default.target
    ln -sf /lib/systemd/system/graphical.target /etc/systemd/system/default.target
    reboot

# Install NS-3.xx
## Dependencies
- install gcc-c++ 4.9.2 [:link:](https://blog.csdn.net/tiandao2009/article/details/79693134)

    yum install centos-release-scl -y
    yum install devtoolset-3-toolchain -y
    scl enable devtoolset-3 bash

use `which gcc` and `gcc -v` to check gcc version
- `yum -y install epel-release` to enable EPEL repo
- follow official install guide

## Installation
Official installation guide [:link:](https://www.nsnam.org/wiki/Installation)
CSDN blogpost [:link:](https://blog.csdn.net/ll_xh/article/details/84287071)
- download using mercurial

    mkdir repos
    cd repos
    hg clone http://code.nsnam.org/ns-3-allinone
    cd ns-3-allinone
    ./download.py -n ns-3.xx
    ./build.py

- install `pybindgen`:
*(if downloaded using mercurial, this step might be unnecessary)*
- `yum install python-pip`
- `pip install pybindgen`
- `pybindgen` version mismatch:
- `vim bindings/python/wscript`
- `REQUIRED_PYBINDGEN_VERSION = '0.19.0'` change to installed `pybindgen` version
- waf configure (give `pybindgen` loc)

    ./waf configure --with-pybindgen=/path/to/pybindgen

To-do
---
- [x] eclipse IDE
- [x] how to log?
- [x] choose what to log?
- [x] read pcap using tcpdump
- [ ] read pcap using wireshark
- [x] read ascii dump
- [ ] make graphs/operations on dump
- [x] install VLC module
- [ ] understand VLC module usage