Install GNS3 on UBUNTU

Though this is a copy paste work from some other site..but just want to keep this with me..:)

How To Install GNS3 in Ubuntu 9.04

As I am currently studying for my CCIE, I find it very helpful to be able to practice creating networks in a non-destructive environment. Thus, GNS3 provides that solution. At first it was a little difficult installing it because you simply can’t type in

sudo apt-get install GNS3

That’s not even half of it. So here is how to install GNS3 and have it work efficiently for your CCIE studying needs.

1. First we will install Dynagen and Python-Qt4

sudo apt-get install dynagen python-qt4

2. Download GNS3 and extract in /opt

cd /opt sudo wget http://downloads.sourceforge.net/project/gns-3/GNS3/0.6.1/GNS3-0.6.1-src.tar.bz2?use_mirror=softlayer sudo tar -xjvf GNS3-0.6.1-src.tar.bz2 && rm GNS3-0.6.1-src.tar.bz2 sudo mv GNS3-0.6.1-src /opt/GNS3

3. Create the following directories:
These directories will be used by GNS3 – such as projects – where your working projects will be stored, cache, temp, IOS images, etc.

cd /opt/GNS3 mkdir Dynamips mkdir IOS mkdir Project mkdir Cache mkdir tmp chmod o+rw -R ./Project chmod o+rw -R ./tmp

4. Download binary of dynamips and make it executable

cd Dynamips sudo wget http://www.ipflow.utc.fr/dynamips/dynamips-0.2.8-RC2-x86.bin sudo chmod +x ./dynamips-0.2.8-RC2-x86.bin

You can create a desktop shortcut by right-clicking on the desktop and select “Create Launcher..”, Name it GNS3 and in the command section type in

python "/opt/GNS3/gns3"

Double click to open GNS3 and we will edit the default settings. If you don’t want to use desktop icons you can create a launcher from your programs menu by right clicking on the Main Menu, selecting Edit Menu. Select New Item on the right and you will be presented with the same window where you type in the above. From there you can move the launcher into any menu section of your choice.

5. Go to edit | preferences and in the ‘Terminal command:’ section type in:

gnome-terminal -t %d -e 'telnet %h %p' > /dev/null 2>&1 &

6. Under ‘Paths’ change the ‘Project directory:’ to

/opt/GNS3/Project

and the ‘IOS/PIX directory:’ to

/opt/GNS3/IOS

7. Click on Dynamips tab on the left

For the ‘Executable path:’ type in

/opt/GNS3/Dynamips/dynamips-0.2.8-RC2-x86.bin

8. Change the ‘Working directory:’ to

/opt/GNS3/tmp

Click on the Capture tab on the left

9. For the ‘Working directory for capture files:’ change it to

/opt/GNS3/Project

After you have done all that you will be able to Open and Save your GNS3 projects properly and have an efficient setup for GNS3. In order to use the devices in GNS3 you must obtain our own IOS images from Cisco.