TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 351
ip dhcp relay information circuit-id, ip dhcp relay information remote-id
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T2500-28TC JetStream L2 Managed Switch CLI Guide 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 Example Specify the option 82 policy as replace to replace the Option 82 field with the local parameter on receiving the DHCP request packet: T2500-28TC(config)# ip dhcp relay information strategy replace ip dhcp relay information circuit-id Description The ip dhcp relay information circuit-id command is used to specify the custom circuit ID when option 82 customization is enabled. To clear the circuit ID, please use no ip dhcp relay information circuit-id command. Syntax ip dhcp relay information circuit-id circuitID no ip dhcp relay information circuit-id Parameter circuitID -- Specify the circuit ID, ranging from 1 to 63 characters. Command Mode Global Configuration Mode Example Specify the circuit ID as "TP-LINK": T2500-28TC(config)# ip dhcp relay information circuit-id TP-LINK ip dhcp relay information remote-id Description The ip dhcp relay information remote-id command is used to specify the custom remote ID when option 82 customization is enabled. To clear the remote ID, please use no ip dhcp relay information remote-id command. Syntax ip dhcp relay information remote-id remoteID no ip dhcp relay information remote-id 334