FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Layer Two Tunneling Protocol (L2TP) is an extension of the Point-to-Point Tunneling Protocol (PPTP) used by internet service providers (ISPs) to enable virtual private networks (VPNs). To ensure security and privacy, L2TP must rely on an encryption protocol to pass within the tunnel.

Detailed explanation-2: -L2TP is a VPN protocol that doesn’t offer any encryption or protection from the traffic that passes through the connection. For this reason, it’s usually paired with IPSec, which is an encryption protocol.

Detailed explanation-3: -L2TP – Layer 2 Tunneling Protocol – is a tunneling protocol used in creating VPN connections. However, it only provides tunneling – bundling up data for private transportation over public networks. For VPN functionality, it uses IPsec, which provides encryption and confidentiality.

Detailed explanation-4: -Layer 2 transport options include Frame Relay, ATM AAL5 and ATM Cell Relay, Ethernet, 802.1q (VLAN), Packet Over Sonet (POS), TDM, and Cisco HDLC and PPP.

Detailed explanation-5: -In computer networking, Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol used to support virtual private networks (VPNs) or as part of the delivery of services by ISPs.