How to configure static route on USG FLEX H on Nebula?

Zyxel_Cooldia

In enterprise or advanced SMB (Small and Medium Business) network environments, it's common to deploy a Layer 3 switch within the LAN to handle internal routing between VLANs. To ensure proper communication between these internal VLANs and external networks (such as the internet or remote sites), a static route must be configured on the firewall. This setup allows the firewall to be aware of the internal subnets managed by the Layer 3 switch and to correctly route traffic back to those networks.

Configuration

Go to “Site-wide > Configure > Firewall > Routing”, and click "Add" to create a static route.

-Name : Subnet_99

-Destination : Select custom, and configure 192.168.99.0/24

-Next Hop Type : gateway IP

-Next Hop : 192.168.168.254

Verification

A host in the subnet 192.168.99.1/24 can access the Internet.