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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] Like L2TP, L2TPv3 provides a pseudo-wire service, but scaled to fit carrier requirements.
The technologies that can be used as pseudo-wire can be Ethernet over MPLS, L2TPv3 or even GRE. There are two IETF standards-track RFCs (RFC 4761 [1] and RFC 4762) [2] describing VPLS establishment. VPLS is a virtual private network (VPN) technology.
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 ...
pfSense has an installable package in the 2.3 release. Tomato variants Shibby and FreshTomato include Tinc support. NYC Mesh uses tinc to connect parts of the mesh over the public internet that would be otherwise out of range.
2 IGMP Internet Group Management Protocol: RFC 1112: 0x03 3 GGP Gateway-to-Gateway Protocol: RFC 823: 0x04 4 IP-in-IP IP in IP (encapsulation) RFC 2003: 0x05 5 ST Internet Stream Protocol: RFC 1190, RFC 1819: 0x06 6 TCP Transmission Control Protocol: RFC 793: 0x07 7 CBT Core-based trees: RFC 2189: 0x08 8 EGP Exterior Gateway Protocol: RFC 888 ...
A management information base (MIB) is a database used for managing the entities in a communication network.Most often associated with the Simple Network Management Protocol (SNMP), the term is also used more generically in contexts such as in OSI/ISO Network management model.
[2] [3] PIM Dense Mode (PIM-DM) implicitly builds shortest-path trees by flooding multicast traffic domain wide, and then pruning back branches of the tree where no receivers are present. PIM-DM is straightforward to implement but generally has poor scaling properties. The first multicast routing protocol, DVMRP used dense-mode multicast ...
n2n is an open source Layer 2 over Layer 3 VPN app utilising peer-to-peer architecture for network membership and routing. Unlike many other VPN programs, n2n can also connect computers which reside behind NAT routers. These connections are set up with help from a third computer that both computers can reach.