How can I set up my environment to route transmissions through its APGW?

Please carry out the following configuration on the router.

1. Add IP Address Object.
2. Add Static Route Setting.
   Network Address: [IP address of the object added in Step 1] Gateway: Host-VPN Gateway Alias
   Interface: vpn
3. Add Filter Rule.
   Interface: vpn

[Reference] -Enterprise Cloud User's Guide
Registering IP Addresses
Adding static route settings
Adding filter rules