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CHAPTER
38-1
Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter Software Configuration Guide
OL-12189-01
38
Configuring IP Unicast Routing
This chapter describes how to configure IP Version 4 (IPv4) unicast routing on the switch. Unless
otherwise noted, the term switch refers to a standalone switch and to a 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
switch or on the stack master.
Note If the switch or switch stack is running the advanced IP services feature set on the Catalyst Switch
Module 3110, you can also enable IP Version 6 (IPv6) unicast routing and configure interfaces to
forward IPv6 traffic in addition to IPv4 traffic. For information about configuring IPv6 on the switch,
see Chapter 39, “Configuring IPv6 Host Functions and Unicast Routing.”
For more detailed IP unicast configuration information, see the Cisco IOS IP Configuration Guide,
Release 12.2 from the Cisco.com page under Documentation > Cisco IOS Software > 12.2 Mainline
> Configuration Guides. For complete syntax and usage information for the commands used in this
chapter, see these command references from the Cisco.com page under Documentation > Cisco IOS
Software > 12.2 Mainline > 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:
• Supported IPv4 Features, page 38-2
• Understanding IP Routing, page 38-3
• Steps for Configuring Routing, page 38-6
• Configuring IP Addressing, page 38-6
• Enabling IP Unicast Routing, page 38-20
• Configuring RIP, page 38-21
• Configuring Stub Routing, page 38-26
• Configuring OSPF, page 38-31 (only the Catalyst Switch Module 3110)
• Configuring EIGRP, page 38-41 (only the Catalyst Switch Module 3110)
• Configuring BGP, page 38-49 (only the Catalyst Switch Module 3110)