Layer 2 Tunneling Protocol - Wikipedia
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. It uses encryption ('hiding') only for its own control messages (using an optional pre-shared secret), and does not provide any encryption or confidentiality of content ...
L2TP — The Linux Kernel documentation
Layer 2 Tunneling Protocol (L2TP) allows L2 frames to be tunneled over an IP network. This document covers the kernel’s L2TP subsystem. It documents kernel APIs for application developers who want to use the L2TP subsystem and it provides some technical details about the internal implementation which may be useful to kernel developers and ...
RFC 2661: Layer Two Tunneling Protocol "L2TP" - RFC Editor
PPP Frames are passed over an unreliable Data Channel encapsulated first by an L2TP header and then a Packet Transport such as UDP, Frame Relay, ATM, etc. Control messages are sent over a reliable L2TP Control Channel which transmits packets in …
第二层隧道协议 - 维基百科，自由的百科全书
第二层隧道协议（英语： Layer Two Tunneling Protocol ，缩写为L2TP）是一种虚拟隧道协议，通常用于虚拟专用网。 L2TP协议自身不提供 加密 与可靠性验证的功能，可以和 安全协议 搭配使用，从而实现数据的加密传输。
L2TP — The Linux Kernel documentation
L2TP control frames carry messages between L2TP clients/servers and are used to setup / teardown tunnels and sessions. An L2TP client or server is implemented in userspace. Each L2TP tunnel is implemented using a UDP or L2TPIP socket; L2TPIP provides L2TPv3 IP encapsulation (no UDP) and is implemented using a new l2tpip socket family.
Layer Two Tunneling Protocol (L2TP) - TechTarget
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.
RFC 3931: Layer Two Tunneling Protocol - Version 3 (L2TPv3)
The necessary setup for tunneling a session with L2TP consists of two steps: (1) Establishing the control connection, and (2) establishing a session as triggered by an incoming call or outgoing call. An L2TP session MUST be established before L2TP can begin to forward session frames.
RFC 3070: Layer Two Tunneling Protocol (L2TP) over Frame Relay
This document describes how L2TP is implemented over Frame Relay Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs). Applicability This specification is intended for those implementations which desire to use facilities which are defined for L2TP and applies only to the use of Frame Relay pont-to-point circuits.
ip-l2tp(8) — Linux manual page - man7.org
The L2TP control protocol allows dynamic L2TP tunnels and sessions to be established and provides for detecting and acting upon network failures. ip l2tp add tunnel - add a new tunnel tunnel_id ID set the tunnel id, which is a 32-bit integer value. Uniquely identifies the tunnel.
Layer 2 Tunneling Protocol (L2TP) - Network Encyclopedia
2021年12月8日 · Layer 2 Tunneling Protocol is an Internet Engineering Task Force standard tunneling protocol that is used to encapsulate Point-to-Point Protocol frames for transmission over TCP/IP, X.25, frame relay, or Asynchronous Transfer Mode (ATM) networks.
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