Cisco Systems 3750 Configuring InterVLAN Routing with Catalyst 3750 Series Switches in a Stacked Configuration

Configuring Inter−VLAN Routing with Catalyst3750 Series Switches in a Stacked Configuration

Introduction

Before You Begin

Conventions

Prerequisites

Components Used

Background Theory

IP Routing on a Stack of 3750s

This document provides a sample configuration for inter−VLAN routing using two Catalyst 3750s series

switches stacked together running EMI software in a typical network scenario. The document uses a Catalyst

2950 series switch and a Catalyst 2948G switch as Layer 2 (L2) closet switches connecting to the stack of

Catalyst 3750s. The stack of Catalyst 3750s is also configured for a default route for all traffic going to the

Internet with the next hop pointing to a Cisco 7200VXR router, which can be substituted by a firewall or other

routers. Configuring inter−VLAN routing on a single 3750 is the same as configuring this feature on a

Catalyst 3550 series switch. For information on configuring inter−VLAN routing on a single Catalyst 3750

series switch, refer to Configuring Inter−VLAN Routing with Catalyst 3550 Series Switches.

For more information on document conventions, see the Cisco Technical Tips Conventions.

Before attempting this configuration, please ensure that you meet the following prerequisites:

knowledge of creating VLANs; for more information, refer to Creating Ethernet VLANs on Catalyst

Switches

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knowledge of creating VLAN trunks; for more information, refer to the Configuring VLAN Trunking

section of Configuring VLANs

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Cisco − Configuring Inter−VLAN Routing with Catalyst 3750 Series Switches in a Stacked Configuration