TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 User Guide - Page 221
Option 82, Port Select, Select, Trusted Port, MAC Verify, Flow Control, Decline Protect
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Port Config Port Select: Select: Port: Trusted Port: MAC Verify: Flow Control: Decline Protect: LAG: Click the Select button to quick-select the corresponding port based on the port number you entered. Select your desired port for configuration. It is multi-optional. Displays the port number. Enable/Disable the port to be a Trusted Port. Only the Trusted Port can receive the DHCP packets from DHCP servers. 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. Enable/Disable the Flow Control feature for the DHCP packets. The excessive DHCP packets will be discarded. Enable/Disable the Decline Protect feature. Displays the LAG to which the port belongs to. 13.2.2 Option 82 Choose the menu Network Security→DHCP Snooping→Option 82 to load the following page. Option 82 Config From/To Port: Figure 13-9 Option 82 Specify the range of ports to set option 82 feature. 211