Glossary of IP communications

The ability to get access to a computer or a network from a remote location. In corporations, people at branch offices, telecommuters, and mobile workers may need access to the corporation's network. Home users get access to the Internet through remote access via an Internet service provider (ISP). Dial-up connection through desktop, notebook, or handheld computer modem over regular telephone lines is a common method of remote access. Remote access is also possible using a dedicated line between a computer or a remote local area network and the "central" or main corporate local area network. A dedicated line is more expensive and less flexible but offers faster data rates. integrated services digital network (ISDN) is a common method of remote access from branch offices since it combines dial-up with faster data rates. Wireless, cable modem, and digital subscriber line (DSL) technologies offer other possibilities for remote access. A remote access server is the computer and associated software set up to handle users seeking access to network remotely. Sometimes called a communication server, it usually includes or is associated with a firewall server to ensure security, and a router that can forward the remote access request to another part of the corporate network. A remote access server may also be used as part of a virtual private network (VPN).

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