D-Link DGS-1520 User Manual - Page 83

DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide DHCP Relay Information Settings This window is used to display and configure the DHCP relay information. To view the following window, click Management > DHCP > DHCP Relay > DHCP Relay Information Settings, as shown below: Figure 4-55 DHCP Relay Information Settings Window The fields that can be configured are described below: Parameter Information Trust All Information Check Information Policy Information Option Description Select this option to enable or disable the DHCP relay agent to trust the IP DHCP relay information for all interfaces. Select this option to enable or disable the DHCP relay agent to validate and remove the relay agent information option in the received DHCP reply packet. Select the Option 82 re-forwarding policy for the DHCP relay agent. Options to choose from are: • Keep - Select to keep the packet that already has the relay option. The packet is left unchanged and directly relayed to the DHCP server. • Drop - Select to discard the packet that already has the relay option. • Replace - Select to replace the packet that already has the relay option. The packet will be replaced with a new option. Select this option to enable or disable the insertion of relay agent information (Option 82) during the relay of DHCP request packets. Click the Apply button to accept the changes made. Click the Edit button to modify the corresponding interface. Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. 73