TP-Link T1500G-10MPS T1500G-10MPSUN V1 User Guide - Page 162
Option 82 Config
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DHCP Snooping Port Configuration UNIT:1/LAGS: Click 1 to configure the physical ports. Click LAGS to configure the link aggregation groups. Select: Select your desired port for configuration. It is multi-optional. Port: Displays the port number. Trusted Port: Select Enable/Disable the port to be a Trusted Port. Only the Trusted Port can receive the DHCP packets from DHCP servers. MAC Verify: Select Enable/Disable the MAC Verify feature. There are two fields of the DHCP packet containing the MAC address of the Host. The MAC Verify feature is to compare the two fields and discard the packet if the two fields are different. Rate Limit: Select the value to specify the maximum amount of DHCP messages that can be forwarded by the switch of this port per second. The excessive DHCP packets will be discarded. Decline Protect: Select the value to specify the maximum amount of DHCP decline packets that can be forwarded by the switch of this port per second. The excessive DHCP decline packets will be discarded. LAG: Displays the LAG to which the port belongs. 12.2.3 Option 82 Config The switch can propagate the control information and the network parameters via the Option 82 field to provide more information for the Host. When the DHCP option 82 feature is enabled on the switch, a host is identified by the switch port through which it connects to the network (in addition to its MAC address). The DHCP option 82 feature is supported only when DHCP snooping is globally enabled. Choose the menu Network Security→DHCP Snooping→Option 82 Config to load the following page. Figure 12-10 Option 82 Config Option 82 Configuration UNIT:1/LAGS: Click 1 to configure the physical ports. Click LAGS to configure the link aggregation groups. 153