TP-Link T2600G-18TSTL-SG3216 T2600G-18TSUN V1 Configuration Guide - Page 773

Configuring Network Security DHCP Snooping Configuration Operation Strategy Circuit ID Customization Circuit ID Remote ID Customization Remote ID LAG 2) Click Apply. Select the operation for the Option 82 field of the DHCP request packets. Keep: Indicates keeping the Option 82 field of the packets. Replace: Indicates replacing the Option 82 field of the packets with one defined by the switch. By default, the Circuit ID is defined to be the VLAN and the number of the port which receives the DHCP Request packets. The Remote ID is defined as the MAC address of the DHCP Snooping device which receives the DHCP Request packets. Drop: Indicates discarding the packets that include the Option 82 field. 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. 4.2 Using the CLI 4.2.1 Enabling DHCP Snooping on VLAN Follow these steps to globally configure DHCP Snooping: Step 1 Step 2 Step 3 Step 4 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. Configuration Guide 743