Cisco Systems 3750E Configuring IP Unicast Routing

CHAPTER

38-1

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

OL-9775-02

Configuring IP Unicast Routing

This chapter describes how to configure IP Version 4 (IPv4) unicast routing on the Catalyst 3750-E

or 3560-E switch. Unless otherwise noted, the term switch refers to a Catalyst 3750-E or 3560-E

standalone switch and to a Catalyst 3750-E switch stack. A switch stack operates and appears as a single

router to the rest of the routers in the network. Basic routing functions, including static routing and the

Routing Information Protocol (RIP), are available with both the IP base feature set and the IP services

feature set. To use advanced routing features and other routing protocols, you must have the IP services

feature set enabled on the standalone swit ch or on the stack master.

Note If the switch or switch stack is running the advanced IP services feature set, you can also enable IP

Version6 (IPv6) unicast routing and configure interfaces to forward IPv6 traffic in addition to IPv4

traffic. For information about configuring IPv6 on the switch, see Chapter39, “Configuring IPv6

Unicast Routing.”

For more detailed IP unicast configuration information, see the Cisco IOS IP Configuration Guide,

Release 12.2. For complete syntax and usage information for the commands used in this chapter, see

these command references:

•Cisco IOS IP Command Reference, Volume 1 of 3: Addressing and Services, Release 12.2

•Cisco IOS IP Command Reference, Volume 2 of 3: Routing Protocols, Release 12.2

•Cisco IOS IP Command Reference, Volume 3 of 3: Multicast, Release 12.2

This chapter consists of these sections:

•Understanding IP Routing, page 38-2

•Steps for Configuring Routing, page 38-5

•Configuring IP Addressing, page 38-5

•Enabling IP Unicast Routing, pa ge 38-19

•Configuring RIP, page 38-20

•Configuring OSPF, page 38-25

•Configuring EIGRP, page 38-35

•Configuring BGP, page 38-43

•Configuring Multi-VRF CE, page 38-64

•Configuring Protocol-Independent Features, page 38-76

•Monitoring and Maintaining the IP Network, page 38-90