240 Chapter 22. VPN Protocols & TunnelsExample: Configuring L2TP/IPsec ClientThis example describes how to set up a L2TP client with IPsec, usingpre-shared keys. The L2TP server is located at 10.0.0.1 and all trafficshould be routed over the L2TP tunnel.WebUI :1. Pre-Shared KeyFirst of all we need to create a pre-shared key to use for the IPsecauthentication.Objects − > VPN Objects − > Pre-Shared Keys − > Add − >Pre-Shared Key:Enter the following:Name: Enter a name for the pre-shared key, L2TPKey for instance.Passphrase/Shared Secret: Enter the secret passphrase. (Has to be thesame as configured on the L2TP/IPsec server)Passphrase/Confirm Secret: Enter the secret passphrase again.Then click OKD-Link Firewalls User’s Guide