Routing Information Protocol (RIP)
RIP stands for routing information protocol. It is an intra domain routing protocol.
RIP is a routing protocol - a protocol (set of rules) that allows a router to exchange information, with other routers, about existing routes.
Routing Information Protocol (RIP) and Interior Gateway Routing Protocol (IGRP) are two very popular Distance Vector routing protocols
Classful Routing Protocol
Flat routing protocol is a network communication protocol implemented by routers in which all routers are each other's peers. Flat routing protocol distributes routing information to routers that are connected to each other without any organization or segmentation structure between them. Flat routing protocols are primarily those that don't work under a predefined network layout and perimeter. They enable the delivery of packets among routers through any available path without considering network hierarchy, distribution and composition. Flat routing protocol is implemented in flat networks where each router node routinely collects and distributes routing information with its neighboring routers. The entire participating node addressed by flat routing protocol performs an equal role in the overall routing mechanism. Routing Information Protocol, Interior Gateway Routing Protocol and Enhanced Interior Gateway Routing Protocol are popular examples of flat routing protocols.
Routing is of two types static and dynamic . In dynamic routing there are two protocols interior and exterior. Interior routing is inside an autonomous system and Exterior routing is between an autonomous system.RIP is short for routing information protocol. RIP is an interior protocol that is used inside an autonomous system.
RIP is a protocol used by routers to exchange information about their routing tables. In dynamic routing, a router learns from other routers about possible routes by advertising what they know. RIP is a protocol that can do that.
The routing protocol also specifies how routers in a network share information with each other and report changes. The routing protocol enables a network to make dynamic adjustments to its conditions, so routing decisions do not have to be predetermined and static.
Perhaps you mean the "passive-interface" command in Cisco routers; what this does is that no information related to the routing protocol will be sent through the specified interface. For example, the interface that connects your network to the ISP should not carry any routing protocol information, since the routing protocol is only useful within your company's network.
Configure routing protocol authentication.
Dynamically, as related to a routing protocol is a type of networking technique whereby the routing protocol creates, updates and maintains the dynamic routing table.