====== GNS3 ======

===== Prerequisites =====
  * GNS3 source, download it from [[http://gns3.com/|GNS3 site]].<code>$ wget -c http://downloads.gns3.com/GNS3-1.2.3.source.zip</code>
  * QEMU<code># apt-get install qemu</code>

===== Installation =====
  * Unzip GNS3 source.<code>unzip GNS3-1.2.3.source.zip</code>
  * Change directory to the extracted directory.<code>cd GNS-1.2.3.source/</code>

==== dynamips ====
  - apt-get install cmake libelf-dev uuid-dev libpcap0.8-dev
  - unzip dynamips-0.2.14.zip
  - cd dynamips-0.2.14/
  - mkdir build
  - cd build/
  - cmake ..
  - make
  - make install

==== GNS3 Server ====
  - apt-get install python3-setuptools python3-netifaces python3-dev libgmp-dev
  - unzip gns3-server-1.2.3.zip
  - cd gns3-server-1.2.3/
  - sudo python3 setup.py install

==== GNS3 GUI ====
  - apt-get install python3-pyqt4
  - unzip gns3-gui-1.2.3.zip
  - cd gns3-gui-1.2.3/
  - sudo python3 setup.py install

===== Cosmetics Configuration =====
  * apt-get install qt4-qtconfig
  * qtconfig
  * Set to the "classic" appearance

===== Running GNS3 =====
  - gns3server &
  - gns3

===== Configuring Loopback Interface =====
We will configure tap0 interface, so that our host system can connect to the GNS3 network topology and vise versa.

  - apt-get install uml-utilities
  - cd /usr/bin/
  - setcap cap_dac_override,cap_net_raw,cap_net_admin+eip dynamips 
  - getcap dynamips
  - modprobe tun
  - tunctl -t tap0
  - ifconfig tap0 192.168.6.2

===== Reading List =====
  * [[http://forum.gns3.net/topic10580.html|206-unable to create linux raw or generic ethernet]]