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Layer 2 Tunneling Protocol version 3 is an IETF standard related to L2TP that can be used as an alternative protocol to Multiprotocol Label Switching (MPLS) for encapsulation of multiprotocol Layer 2 communications traffic over IP networks. [1]
The process of setting up an L2TP/IPsec VPN is as follows: Negotiation of IPsec security association (SA), typically through Internet key exchange (IKE). This is carried out over UDP port 500, and commonly uses either a shared password (so-called "pre-shared keys"), public keys, or X.509 certificates on both ends, although other keying methods ...
FreeLAN, open-source, free, multi-platform IPv4, IPv6 and peer-to-peer VPN software over UDP/IP. n2n, an open source Layer 2 over Layer 3 VPN application which uses a peer-to-peer architecture for network membership and routing; Tinc, Ethernet/IPv4/IPv6 over TCP/UDP; encrypted, compressed
www.tinc-vpn.org Tinc is an open-source , self-routing, mesh networking protocol and software implementation used for compressed and encrypted virtual private networks . It was started in 1998 by Guus Sliepen, Ivo Timmermans, and Wessel Dankers, and released as a GPL -licensed project.
Its original target was small appliances like routers, VPN gateways, or embedded x86 devices. However, it supports hosting other Linux guest OSes under LXC control, making it an attractive hosting solution as well. Uses Busybox and musl. ClearOS: Active: Red Hat Enterprise Linux derivative: x86, x86-64: GPL and others: Free or paid registration
In computer networks, a tunneling protocol is a communication protocol which allows for the movement of data from one network to another. They can, for example, allow private network communications to be sent across a public network (such as the Internet), or for one network protocol to be carried over an incompatible network, through a process called encapsulation.
SoftEther VPN Bridge is a VPN program for building a site-to-site VPN. [6] To build a site-to-site VPN network, the system administrator has to install SoftEther VPN Server on the central site, and has to install SoftEther VPN Bridge on one or more remote sites. A VPN Bridge connects to the central VPN Server by cascade connection.
A customer can use OSPF over a MPLS VPN, where the service provider uses BGP or RIP as their interior gateway protocol. [8] When using OSPF over MPLS VPN, the VPN backbone becomes part of the OSPF backbone area 0. In all areas, isolated copies of the IGP are run. Advantages: The MPLS VPN is transparent to the customer's OSPF standard routing.