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  2. Virtual private network - Wikipedia

    en.wikipedia.org/wiki/Virtual_private_network

    Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).

  3. Layer 2 Tunneling Protocol - Wikipedia

    en.wikipedia.org/wiki/Layer_2_Tunneling_Protocol

    Layer 2 Tunneling Protocol. 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 ...

  4. Virtual Private LAN Service - Wikipedia

    en.wikipedia.org/wiki/Virtual_Private_LAN_Service

    Virtual Private LAN Service (VPLS) is a way to provide Ethernet -based multipoint to multipoint communication over IP or MPLS networks. It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through pseudowires. The term sites includes multiplicities of both servers and clients.

  5. OpenVPN - Wikipedia

    en.wikipedia.org/wiki/OpenVPN

    License. GNU GPLv2 [10] Website. openvpn.net. OpenVPN is a virtual private network (VPN) system that implements techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It implements both client and server applications.

  6. IEEE 802.1Q - Wikipedia

    en.wikipedia.org/wiki/IEEE_802.1Q

    IEEE 802.1Q, often referred to as Dot1q, is the networking standard that supports virtual local area networking (VLANs) on an IEEE 802.3 Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in handling such frames.

  7. MAC address - Wikipedia

    en.wikipedia.org/wiki/MAC_address

    A MAC address (short for medium access control address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. This use is common in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth. Within the Open Systems Interconnection ...

  8. Network address translation - Wikipedia

    en.wikipedia.org/wiki/Network_address_translation

    Network address translation (NAT) is a method of mapping an IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device. [1] The technique was originally used to bypass the need to assign a new address to every host when a network was moved, or when ...

  9. Tunneling protocol - Wikipedia

    en.wikipedia.org/wiki/Tunneling_protocol

    t. e. In computer networks, a tunneling protocol is a communication protocol which allows for the movement of data from one network to another. It 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 ...

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