tmnxRadiusSourceAddress is used to configure the source address of
the Radius packet. It should be a valid unicast address.
If this object is configured with the address of the router interface,
the Radius client uses it while making a request to the server.
If the address is not configured or is not the address of the one of
interfaces, the source address is based on the address of the Radius
server. If the server address is in-band, the client uses the system
ip address. If it is out-of-band, the source address is the address of
the management interface.
tmnxRadiusSourceAddress was made obsolete in the 4.0 revision of
Alcatel-Lucent SROS series systems. The source address of the Radius
packet can now be set by creating a tmnxSourceIPEntry for Radius
application in the tmnxSourceIPTable.