TP-Link T2500G-10MPS T2500G-10MPSUN V1 Configuration Guide - Page 607

Configuring Network Security DHCP Snooping Configuration Circuit ID Customization Circuit ID Remote ID Customization Remote ID LAG 2) Click Apply. Select Enable to manually define the circuit ID field, which is a sub-option of Option 82. The circuit ID configurations of the switch and the DHCP server should be compatible with each other. Enter the customized circuit ID, which contains up to 64 characters. Select Enable to manually define the remote ID field, which is a sub-option of Option 82. The remote ID configurations of the switch and the DHCP server should be compatible with each other. Enter the customized remote ID, which contains up to 64 characters. Displays the LAG that the port is in. 3.2 Using the CLI 3.2.1 Enabling DHCP Snooping on VLAN Follow these steps to globally configure DHCP Snooping: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 configure Enter global configuration mode. ip dhcp snooping Globally enable DHCP Snooping. ip dhcp snooping vlan vlan-range Enable DHCP Snooping on the specified VLAN. vlan-range: Enter the vlan range in the format of 1-3, 5. show ip dhcp snooping Verify global configuration of DHCP Snooping. end Return to privileged EXEC mode. copy running-config startup-config Save the settings in the configuration file. The following example shows how to enable DHCP Snooping globally and on VLAN 5: Switch#configure Switch(config)#ip dhcp snooping Configuration Guide 580