Interior Gateway Protocol

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Interior Gateway Protocol

(IGP) An Internet protocol which distributes routing information to the routers within an autonomous system. The term "gateway" is historical, "router" is currently the preferred term.

See also Exterior Gateway Protocol, Open Shortest Path First, Routing Information Protocol.
References in periodicals archive ?
19 /PRNewswire/ -- Cisco Press today announced release of the second edition of Routing TCP/IP, Volume I, the premier text on interior routing protocols, by Jeff Doyle and Jennifer DeHaven Carroll.
includes protocol changes and Cisco(R) features that enhance routing integrity, secure routers from attacks initiated through routing protocols, and provide greater control over the propagation of routing information for all IP interior routing protocols.
In order to provide redundant access from the Internet to LAN-based Web and e-commerce servers, Netopia routers can be configured to have the backup module or modem connect to a POP router at an ISP, equipped with interior routing protocols such as OSPF (Open Shortest Path First) or IGRP (Interior Gateway Routing Protocol).

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