A VPN protocol that is created by combining the PPTP and L2F tunneling protocols. L2TP is used as the transport protocol in the Windows Server 2003 VPN service in conjunction with IPSec.
LDAP (Lightweight Directory Access Protocol)
A lightweight version of the X.500 directory standard that is used as the primary access protocol for Active Directory.
leaf
The end object in a hierarchical tree structure.
lease
The length of time a client computer can use a dynamically assigned IP address.
link-state routing
Dynamic routing that tests the condition of a connection (link) between routers. OSPF is a link-state protocol.
LMHOSTS
A static database file that is used to resolve names on NetBIOS networks.
