TP-Link OC200 Omada Controller Software 4.1.5Windows/Linux User Guide - Page 139

Chapter 4 Username Password IPsec Encryption Remote Server Remote Subnets Local Networks Pre-shared Key WAN Configure the Network with Omada SDN Controller Enter the username used for the VPN tunnel. This username should be the same as that of the L2TP server. Enter the password of user. This password should be the same as that of the L2TP server. Specify whether to enable the encryption for the tunnel. Encrypted: Select Encrypted to encrypt the L2TP tunnel by IPsec (L2TP over IPsec). With Encrypted selected, enter the Pre-shared Key for IKE authentication. VPN server and VPN client must use the same pre-shared secret key for authentication. Unencrypted: With Unencrypted selected, the L2TP tunnel will be not encrypted by IPsec. Enter the IP address or domain name of the L2TP server. Enter the IP address and subnet mask to specify the remote network. It's always the IP address range of LAN on the remote peer of the VPN tunnel. Select the networks on the local side of the VPN tunnel. The VPN policy will be only applied to the selected local networks. Enter the pre-shared secret key when the L2TP tunnel is encrypted by IPsec. Both peer gateways must use the same pre-shared secret key for authentication. Select the WAN port on which the VPN tunnel is established. 137