この項目「Layer 2 Tunneling Protocol」は途中まで翻訳されたものです。（原文：en:Layer_2_Tunneling_Protocol 28 September 2009 at 22:11(UTC)） 翻訳作業に協力して下さる方を求めています。

What can L2TP do for your network? | Network World The Layer 2 Tunneling Protocol (L2TP) is a standard protocol for tunneling L2 traffic over an IP network. Its ability to carry almost any L2 data format over IP or other L3 networks makes it Layer Two Tunneling Protocol "L2TP" Jul 15, 2016

Layer 2 Tunneling Protocol (L2TP) Active Discovery Relay for PPP over Ethernet (PPPoE). Category: Informational. Defines L2TP AVP attributes 55 (PPPoE Relay), 56 (PPPoE Relay Response Capability), 57(PPPoE Relay Forward Capability). Layer Two Tunneling Protocol - Version 3 (L2TPv3). Category: Standards Track. Defines L2TP version 3.

Which security protocol is used in VPNs and is a combination of Microsoft's Point-to-Point Tunneling Protocol and Cisco's Layer 2 Forwarding? L2TP Which of the following statements best describes an intranet? Layer 2 Tunneling Protocol (L2TP) - a tunneling protocol used to support virtual private networks (VPNs) or as part of the delivery of services by ISPs. It does not provide any encryption or confidentiality by itself. Rather, it relies on an encryption protocol that it passes within the tunnel to provide privacy.

Physical layer (1) Link layer (2) - Inside frames IP layer (3) - Inside IPv4 or IPv6 packets Transport layer (4) - Inside TCP or UDP Application layer Where does L2TP protocol stands? The name suggests it is a layer 2 protocol, but the wiki article says L2TP packets are inside UDP datagrams. This, to me, suggests it is an application protocol.

L2TP, Level 2 Tunneling Protocol - Network Sorcery 103 rows Layer 2 Tunnel Protocol L2TP - Cisco Nov 02, 2007