L2TPbased
L2TPbased is a term used to describe systems, configurations, or deployments that rely on the Layer 2 Tunneling Protocol (L2TP) to carry traffic across an IP network. L2TP encapsulates PPP frames or other layer 2 payloads so they can be transmitted over an IP network, enabling virtual private networks and network extension across the internet or wide area networks.
Because L2TP provides tunneling but not strong encryption on its own, most L2TPbased deployments use L2TP in
In addition to the standard L2TP tunnel, L2TPv3 is a later variant that supports layer 2 tunneling
Operationally, an L2TPbased deployment involves tunnel endpoints, often called LACs (L2TP Access Concentrators) and LNSs (L2TP
Security considerations include ensuring proper IPsec configuration, strong authentication, and protection against common VPN threats. L2TP