Deep Edge supports Point-to-Point Tunneling Protocol (PPTP) to tunnel PPTP traffic between two VPN peers. Windows or Linux PPTP clients can establish a PPTP tunnel with a Deep Edge that has been configured to act as a PPTP server. As an alternative, Administrators can configure Deep Edge to forward PPTP packets to a PPTP server on the network behind the Deep Edge. PPTP VPN is available only in NAT/Route mode. The current maximum number of PPTP sessions is 254.

When using Deep Edge as a PPTP gateway, Administrators can select a PPTP client IP from a local address range or use the server defined in the PPTP user group. Administrators select which method to use for IP address retrieval and, in the case of the user group server, provide the IP address and the user group.

This section explains how to specify a range of IP addresses for PPTP clients or configure the PPTP client-side IP address to be used in the tunnel setup.

Administrators must select the local or Remote Authentication Dial In User Service (RADIUS) service for authentication. Like LDAP settings and SMTP server settings, Administrators also must configure a RADIUS server it can use.