You can configure the static, using this third option of the firewall service blade setup wizard, or the Configure Static Route option in the Firewall menu
For the Firewall Service Blade Setup Wizard:
Right-click the blade, then select Firewall Service Blade Setup Wizard.
Click Next till the Configure Static Route option, in the left pane, is selected. The static route details are displayed in the right pane.
Click Create.
For the Firewall menu:
Right-click the blade, then select Configure Static Route. The static route details are displayed in the right pane.
Click Create.
The following information appears:
Name of the firewall interface.
IP address assigned to the VLAN
Subnet mask of the VLAN IP address.
IP gateway for the traffic in a particular VLAN.