164Step Command Remarks3. Configure the port to blockDHCP requests. dhcp snooping deny By default, the port does not blockDHCP requests.Enabling DHCP snooping loggingThe DHCP snooping logging feature enables the DHCP snooping device to generate DHCPsnooping logs and send them to the information center. For information about the log destination andoutput rule configuration in the information center, see Network Management and MonitoringConfiguration Guide.As a best practice, disable this feature if the log generation affects the device performance.To enable DHCP snooping logging:Step Command Remarks1. Enter system view. system-view N/A2. Enable DHCP snoopinglogging. dhcp snooping log enable By default, DHCP snoopinglogging is disabled.Display and maintenance commands for DHCPsnoopingExecute display commands in any view, and reset commands in user view.Task CommandDisplay DHCP snooping entries. display dhcp snooping binding [ ip ip-address [ vlanvlan-id ] ] [ verbose ]Display Option 82 configuration informationon the DHCP snooping device.display dhcp snooping information { all | interfaceinterface-type interface-number }(In standalone mode.) Display DHCP packetstatistics on the DHCP snooping device.display dhcp snooping packet statistics [ slotslot-number ](In IRF mode.) Display DHCP packetstatistics on the DHCP snooping device.display dhcp snooping packet statistics [ chassischassis-number slot slot-number ]Display information about trusted ports. display dhcp snooping trustDisplay information about the file that storesDHCP snooping entries. display dhcp snooping binding databaseClear DHCP snooping entries. reset dhcp snooping binding { all | ip ip-address [ vlanvlan-id ] }(In standalone mode.) Clear DHCP packetstatistics on the DHCP snooping device. reset dhcp snooping packet statistics [ slot slot-number ](In IRF mode.) Clear DHCP packet statisticson the DHCP snooping device.reset dhcp snooping packet statistics [ chassischassis-number slot slot-number ]
