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IGP Last modified: Tuesday, April 27, 2004
Short for interior gateway protocol, a generic term for a routing protocol that is used to exchange routing information among routers in an autonomous network, such as a enterprise’s LAN. IGPs typically support confined geographical areas. RIP and OSPF are two examples of an IGP. Compare with EGP.
Choosing an Interior Gateway Protocol When you enable routing protocols, and their corresponding processes, you unleash a powerful, dynamic force that automates the population of routing tables on your network. But using any major IGP (Interior Gateway Protocol)--RIP/RIP2, OSPF or IGRP/ EIGRP--has trade-offs.	Related Categories Network Protocols Networks Related Terms BGP DVMRP Interior Gateway Routing Protocol OSPF Routing Information Protocol routing protocol