107Step Command Remarks2. Create a DHCP optiongroup and enter DHCPoption group view.dhcp option groupoption-group-numberBy default, no DHCP option groupexists.3. Customize a DHCPoption.option code { ascii ascii-string | hexhex-string | ip-addressip-address&<1-8> }By default, no DHCP option iscustomized in a DHCP optiongroup.DHCP options specified in DHCPoption groups take precedenceover those specified in DHCPaddress pools.4. Enter DHCP address poolview. dhcp server ip-pool pool-name By default, no DHCP address poolexists.5. Specify the DHCP optiongroup for the DHCP userclass.class class-name option groupoption-group-numberBy default, no DHCP option groupis specified for a DHCP user class.Configuring the DHCP user class whitelistThe DHCP user class whitelist allows the DHCP server to process requests only from clients on theDHCP user class whitelist. The whitelist does not take effect on clients who request static IPaddresses, and the server always processes their requests.To configure the DHCP user class whitelist:Step Command Remarks1. Enter system view. system-view N/A2. Enter DHCP address poolview. dhcp server ip-pool pool-name By default, no DHCP address poolexists.3. Enable the DHCP user classwhitelist. verify class By default, the DHCP user classwhitelist is disabled.4. Add DHCP user classes tothe DHCP user classwhitelist.valid class class-name&<1-8> By default, no DHCP user class ison the DHCP user class whitelist.Enabling DHCPYou must enable DHCP to validate other DHCP configurations.To enable DHCP:Step Command Remarks1. Enter system view. system-view N/A2. Enable DHCP. dhcp enable By default, DHCP is disabled.
