Open App Store and search for cisco anyconnect.
Note: The Cisco AnyConnect client on iOS has become "legacy" and a new version is available.The new version looks and functions the same as the old, but it needs to be downloaded and installed as a new App.
Once installed, open the application and touch OK to continue
Touch Add New VPN Connection...
In the Server Address field enter vpn.griffith.edu.au and touch Done
Choose newly created connection and slide the ON/OFF switch to turn the VPN on
Choose your preferred Group, enter your Griffith Portal username and Password and touch OK
Once connected you will see the VPN icon at the top of the screen as well as the ON/OFF switch is green and in ON position per screenshot below