Cisco Systems CCNA 2 manual Introduction to Static Routing, Introduction to routing

6.1 Introduction to Static Routing

Essential Labs:	6.1.6
Optional Labs:	None
Core TIs:	All
Optional TIs:	none

Course-Level Claim: Students can identify, configure, and verify the use of static and default routes.

Certification-Level Claim: Students can evaluate the characteristics of routing protocols.

Hands-on skills: none

6.1.1 Introduction to routing

Routing is the process that a router uses to forward packets toward the destination network. The routing process is based on the destination IP address of a packet. When routers use dynamic routing, the routing information is learned from other routers. When static routing is used, a network administrator must configure information about remote networks manually. Any network topology changes require the network administrator to add and delete static routes to account for the changes.

Ask students the following questions:

•What is the difference between static and dynamic routing?

•When should a static route be used instead of a dynamic routing protocol?

6.1.2Static route operation

Static route operations can be divided into three parts:

•Network administrator configures the route

•Router installs the route in the routing table

•Packets are routed through the static route

Since a static route is manually configured, the administrator must configure the static route on the router with the ip route command. The administrator can accomplish this objective in one of two ways. The administrator can specify the outgoing interface or the next-hop IP address of the adjacent router.

63 - 238 CCNA 2: Routers and Routing Basics v3.1 Instructor Guide – Module 6 Copyright ♥ 2004, Cisco Systems, Inc.