What are the different gateways or tunnels used for?
Split tunnel is the default and is generally used to allow users to access on-campus resources. When using the split tunnel option, any traffic meant for destinations on campus will go through the tunnel. However, traffic meant for other sites like Google will go from your existing IP address.
The full tunnel option (listed as “Full Tunnel and Library Access”) directs all traffic, regardless of the destination, through the GlobalProtect client and is routed through the campus network and has an IP address associated with the campus. The most common use case for this option is when you are trying to access a resource that is licensed for the campus, such as journals licensed through the library for campus users.
The Restricted Tunnel is a future service that will be limited to people and systems needing access to sensitive data. It will have increased monitoring, and will utilize many of the advanced security features of the Palo Alto firewalls.