418[Device–GigabitEthernet3/1/2] ip subscriber initiator unclassified-ip enable# Specify dm1 as the ISP domain.[Device–GigabitEthernet3/1/2] ip subscriber unclassified-ip domain dm1# Configure plaintext password radius for authentication.[Device–GigabitEthernet3/1/2] ip subscriber password plaintext radius[Device–GigabitEthernet3/1/2] quitVerifying the configuration# Display IPoE session information to verify that the host has come online.[Device] display ip subscriber sessionType: D-DHCP S-Static U-Unclassified-IPInterface IP address MAC address Type State--------------------------------------------------------------------------------GE3/1/2 2.2.2.2 000c-29a6-b656 U OnlineExample: Configuring a DHCP userNetwork configurationAs shown in Figure 146, the host accesses the BRAS as a DHCP user. It obtains configurationinformation from the DHCP server. The BRAS performs AAA for the host through the RADIUSserver.Figure 146 Network diagramProcedure1. Configure the RADIUS server: (This section uses the Linux Free RADIUS server as anexample.)# Add BRAS IP address 4.4.4.2 and secret radius to the clients.conf file.client 4.4.4.2/32 {ipaddr = 4.4.4.2netmask=32secret=radius}# Add the username and password to the users user information file. The username is the hostMAC address and the password is radius.000c29a6b656 Cleartext-Password :="radius"2. Configure the DHCP server:# Enable DHCP. system-view[DHCP-server] dhcp enable