TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 350
ip dhcp relay information option, ip dhcp relay information strategy
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T2500-28TC JetStream L2 Managed Switch CLI Guide Command Mode G lobal C onfiguration Mode Example Add two DHCP Servers with IP addresses 192.168.2.1 and 192.168.3.1 to the switch: T2500-28TC (config)# ip dhcp relay helper-address 192.168.2.1 T2500-28TC (config)# ip dhcp relay helper-address 192.168.3.1 ip dhcp relay information option Description The ip dhcp relay information option command is used to enable option 82 support in DHCP Relay. To disable this function, please use no ip dhcp relay information option command. Syntax ip dhcp relay information option no ip dhcp relay information option Command Mode Global Configuration Mode Example Enable option 82 support in DHCP Relay: T2500-28TC(config)# ip dhcp relay information option ip dhcp relay information strategy Description The ip dhcp relay information strategy 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 strategy command. Syntax ip dhcp relay information strategy { drop | keep | replace } no ip dhcp relay information strategy Parameter drop | keep | replace --The operations for Option 82 field of the DHCP request packets from the Host. The default operation is keep. 333