RADIUS Source Interface Configuration

Use the RADIUS Source Interface Configuration page to specify the physical or logical interface to use as the RADIUS (Remote Authentication Dial In User Service) client source interface. When an IP address is configured on the source interface, this address is used for all RADIUS communications between the local RADIUS client and the remote RADIUS server. The IP address of the designated source interface is used in the IP header of RADIUS management protocol packets. This allows security devices, such as firewalls, to identify all source packets coming from a specific device.

To access this page, click Security > RADIUS > Source Interface Configuration in the navigation menu.

RADIUS Accounting Statistics Fields

Field	Description
Type	The type of interface to use as the source interface: None: The primary IP address of the originating (outbound) interface is used as the source address. Interface: The primary IP address of a physical port is used as the source address. Loopback: The primary IP address of the loopback interface is used as the source address. A loopback is always reachable, as long as any routing interface is up. VLAN: The primary IP address of a VLAN routing interface is used as the source address.
Interface	When the selected Type is Interface, select the physical port to use as the source interface.
Loopback Interface	When the selected Type is Loopback, select the loopback interface to use as the source interface.
VLAN ID	When the selected Type is VLAN, select the VLAN to use as the source interface. The menu contains only the VLAN IDs for VLAN routing interfaces.