(Optional) Configuring Relogin for Users Who Have the Same MAC Address as an Online User

When an STB is quickly powered off and then restarted, the NetEngine 8000 F cannot detect the user logout, and the user entry is still available. After the STB restarts, the user goes online again. The STB obtains a new account from the NMS in which the online domain may have changed and sends a Discover or Request message to the NetEngine 8000 F. Upon receipt of the Discover or Request message, the NetEngine 8000 F does not check the Option 60 field because a user entry with the same MAC address already exists. The NetEngine 8000 F responds with an ACK message. As a result, the user always goes online from the initial domain and cannot access the network normally. To resolve this problem, enable the NetEngine 8000 F to log out an online user when it receives a Discover or Request message from a user with the same MAC address as the online user.