TP-Link T2600G-18TSTL-SG3216 T2600G-28MPSUN V2 CLI Reference Guide Guide - Page 486

48.4ip dhcp relay information policy Description The ip dhcp relay information policy command is used to specify the operation for the Option 82 field of the DHCP request packets from the Host. To restore to the default option, please use no ip dhcp relay information policy command. Syntax ip dhcp relay information policy { drop | keep | replace } no ip dhcp relay information policy Parameter drop | keep | replace --The operations for Option 82 field of the DHCP request packets from the Host. The default operation is keep. drop: Discard the packet with the Option 82 field. keep: Keep the Option 82 field in the packet. replace: Replace the option 82 field with the system option defined by the switch. Command Mode Global Configuration Mode Privilege Requirement Only Admin, Operator and Power User level users have access to these commands. Example Specify the option 82 policy as replace to replace the Option 82 field with the local parameter on receiving the DHCP request packet: T2600G-28TS(config)# ip dhcp relay information policy replace 48.5ip dhcp relay information custom Description The ip dhcp relay information custom command is used to enable the switch to customize the option 82 field. To disable this function, please use no ip dhcp relay information custom command. Syntax ip dhcp relay information custom 465