Device model: ACU2
Software version: V200R006C10SPC200
Problem Description: In MAC address authentication scenarios, the AAA
server occasionally fails to obtain the IP address of the terminal from the
RADIUS Accounting-Request (Start) packet sent by the ACU2.
Capture packets on the AAA server, as shown in the following figure.
Some of the Accounting-Request (Start) packets sent by the ACU2 to AAA do
not carry the frame-ip-address.