# Source Interface Based Route Configuration

The Source Interface Routing Configuration page enables you to add a source interface-based route to the source interface-based routing table of the current virtual router.

### To Create a New Source Interface-Based Route

1. Enter the necessary information:

Virtual Router Name: (Read-only) Indicates the virtual router in which the route applies.

Source Route Interface: (Read-only) Indicates the interface on which traffic arrives on the NetScreen device.

Network Address / Netmask: Indicates the IP address and network mask values associated with the source address for the route entry.

Interface: From the drop-down list, select the interface through which the gateway is accessed.

Gateway IP Address: The IP address of the gateway for the route.

Preference: A weight that determines the best path for traffic to reach its destination. Enter a value between 0 and 255.

Metric: Indicates the priority associated with the route being added to the route table. Enter a value between 1 and 65535.

Permanent: Specifies that the route is kept alive when the interface is down or the IP address is removed from the interface.

2. Click OK to save your changes.