This article describes how to incorporate split tunneling into your network.
If you would like to select specific network subnets to go through from the client to the SonicWall network, instead of full tunnel mode (where all the traffic is encrypted and proxied through the SonicWall network), you will need to manually specify which subnets you’d like to include through the tunnel.
NOTE: The default Tunnel configuration is Tunnel All (Redirect All).
To change to Split Tunnel:
Navigate to Tunnels, click on Settings.
Choose Split Tunneling
You would be presented with 2 options- Automatic and Manual configuration
After defining the split tunneling subnets, this information will be available on the Networks page.