D-Link DGS-1250 Emulator - Page 110
ip dhcp relay information option-insert
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DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide Default By default, Option 82 is not inserted. Command Mode Global Configuration Mode. Usage Guideline This command takes effect when the service dhcp command is enabled. When DHCP Option 82 is enabled, the DHCP packet received from the client will be inserted with an Option 82 field before being relayed to the server. The DHCP Option 82 contains two sub-options respectively the circuit ID sub-option and remote ID sub-option. Administrators can use the ip dhcp relay information option format remote-id command to specify a userdefined string for the remote ID sub-option. Example This example shows how to enable the insertion of Option 82 during the relay of DHCP request packets. Switch# configure terminal Switch(config)# ip dhcp relay information option Switch(config)# 15-7 ip dhcp relay information option-insert This command is used to configure the insertion of Option 82 for an interface during the relay of DHCP request packets. Use the no form of this command to remove the configuration of the insert function for the interface. ip dhcp relay information option-insert [none] no ip dhcp relay information option-insert [none] Parameters none (Optional) Specifies to disable insertion of Option 82 in the relayed packet. Default Default None. Command Mode Interface Configuration Mode. Usage Guideline This command takes effect when the service dhcp command is enabled. 107
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