1. Static IPv4 routing, add routing table

• Visit the Network -> Static Routes page. Need to fill in Target network, IPv4 subnet mask, and IPv4 gateway.

2. Firewall, add firewall permission rules

• Visit the Network -> Firewall -> Communication Rules page. Need to fill in Name, Match rule, and Action.

Name

Just fill in the name as you like, for example ALLOW-LAN

Matching rules

Forward IPv4 from lan to lan, IP {target network}.

Action

Of course, choose Accept