[VPN] How to install Cisco VPN client on Ubuntu

Here is a quick guide on how I set up Cisco VPN client.

1. Install the "patch" tool if you haven't done already, eg. run "sudo apt-get install patch".
   
2. Download the client: http://tuxx-home.at/vpn/Linux/vpnclient-linux-x86_64-4.8.01.0640-k9.tar.gz to whatever location.
   
3. run "tar zxvf vpnclient-linux-x86_64-4.8.01.0640-k9.tar.gz"
4. Go to the new dir, eg. "cd vpnclient"
5. Download the patch that matches your kernel into the directory where your vpn client was extracted. In my case: http://projects.tuxx-home.at/ciscovpn/patches/vpnclient-linux-2.6.24-final.diff
6. Run "patch < vpnclient-linux-2.6.24-final.diff" in the directory where you extracted the vpnclient.
7. Install the vpnclient by running "sudo ./vpn_install" and follow the instructions.
   
8. Start the vpn client: "sudo /etc/init.d/vpnclient_init start"

After installation you can add the VPN profiles you need (pcf files) to the cisco profile directory "/etc/opt/cisco-vpnclient/Profiles/".

Once everything has been set up, use "sudo vpnclient connect <your-vpn-profile>" to connect to the VPN.

That's it!

Enjoy!