|  | 11.1 | Routing Basics
| 11.1.5 | Routed versus routing protocol
Because of the similarity of the two terms, confusion often exists with routed protocol and routing protocol. Routed protocol is any network protocol that provides enough information in its network layer address to allow a packet to be forwarded from one host to another host based on the addressing scheme. Routed protocols define the field formats within a packet. Packets are generally conveyed from end system to end system. The Internet Protocol (IP) is an example of a routed protocol. Routing protocols support a routed protocol by providing mechanisms for sharing routing information. Routing protocol messages move between the routers. A routing protocol allows the routers to communicate with other routers to update and maintain tables. TCP/IP examples of routing protocols are: RIP (Routing Information Protocol) IGRP (Interior Gateway Routing Protocol) EIGRP (Enhanced Interior Gateway Routing Protocol) OSPF (Open Shortest Path First)