If you want to provide a connection between systems that use Layer Two Tunneling Protocol (L2TP), select the L2TP connection.
After an L2TP tunnel is established, a virtual Point-to-Point Protocol (PPP) connection is made between your system and the remote system. By using L2TP tunneling in conjunction with IP security (IP-SEC), you can send, route, and receive secure data over the Internet.
The L2TP (virtual line) connection type has the following operating modes:
Choose this operating mode to enable a remote system to connect to the system over an L2TP tunnel.
Choose this operating mode to enable the system to connect to a remote system over an L2TP tunnel.
Choose this operating mode to enable the system to connect to another system or an Internet service provider (ISP) over an L2TP tunnel, and to direct the ISP to dial a remote PPP client.
Choose this operating mode to enable the system to establish a multi-hop connection.
The L2TP Terminator profile that this multi-hop initiator is associated with needs to have the Allow multi-hop connection box checked and have a PPP validation list entry that links the PPP user name to the multi-hop initiator profile.