Identifier of module used for RFC 5176 dynamic authentication
requests. %0 is replaced with NAS source address. There is no default value.
Example 4. DynauthSender
# Send Disconnect and Change-of-Authorization messages
# using AuthBy RADIUS with Identifier that has format
# dynauth-sender-nnn.nnn.nnn.nnn
DynauthSender dynauth-sender-%0
