L
Last Known Good Configuration

One of the selections available from the Advanced Options screen after pressing F8 on bootup. When a user successfully logs on, the Last Known Good Configuration data is stored in the Registry. If changes are made to the system preventing the user from logging on again, the Last Known Good Configuration selection can be used to return the system to its condition when the user last logged on.

Layer 2 Tunneling Protocol (L2TP)

A tunneling protocol used with virtual private networks (VPNs). L2TP was developed by combining the strengths of Microsoft's PPTP and Cisco's Layer 2 Forwarding (L2F) protocol. It encrypts data using IPSec (and is known as L2TP/IPSec) and supports both IPv4 and IPv6. The only drawback is ...

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