International virtual private network (IVPN)

Refers to the local, long distance, and international phone system that we use every day. In some countries, it is a single phone company. In countries with competition, PSTN refers to the entire interconnected collection of local, long distance, and international phone companies, of which there could be thousands.
[view]

Extent to which protective measures, techniques, and procedures must be applied to information systems and networks based on risk, threat, vulnerability, system interconnectivity considerations, and information assurance needs. Levels of protection are: 1. Basic: information system and networks requiring implementation of standard minimum security countermeasures. 2. Medium: information system and networks requiring layering of additional safeguards above the standard minimum security countermeasures. 3. High: information system and networks requiring the most stringent protection and rigorous security countermeasures.
[view]

A network communications process that protects the contents of protocol packets by encapsulating them in packets of another protocol. Technology enabling one network to send its data via another network’s connections. Tunneling works by encapsulating a network protocol within packets carried by the second network. The use of authentication and encryption to set up virtual private networks (VPNs).
[view]

A networking device that connects networks that are using different network protocols. A product that enables two dissimilar networks to communicate or interface with each other. In the IP community, an older term referring to a routing device. Today, the term “router” is used to describe nodes that perform this function, and “gateway” refers to a specialpurpose device that performs an application layer conversion of information from one protocol stack to another. Compare with router. Interface providing a compatibility between networks by converting transmission speeds, protocols, codes, or security measures.
[view]

A network connection established between two systems over an existing private or public network. A VPN provides confidentiality and integrity for network traffic through the use of encryption. A secure private network that uses the public telecommunications infrastructure to transmit data. In contrast to a much more expensive system of owned or leased lines that can only be used by one company, VPNs are used by enterprises for both extranets and wide are intranets. Using encryption and authentication, a VPN encrypts all data that passes between two Internet points, maintaining privacy and security. Protected information system link utilizing tunneling, security controls (. See information assurance), and endpoint address translation giving the impression of a dedicated line.
[view]