Configuring InterVLAN Routing with Catalyst 3750/3560/3550 Series Switches
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Layer-Three Switching and Forwarding ...
Layer-Three Switching and Forwarding
This document explains how to configure interVLAN routing with Cisco Catalyst 3750/3560/3550 series switches. The document provides a sample configuration for interVLAN routing with a Catalyst 3550 series switch that runs enhanced multilayer image (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 that connect to the Catalyst 3550. The Catalyst 3550 configuration also has a default route for all traffic that goes to the Internet when the next hop points to a Cisco 7200VXR router. You can substitute a firewall or other routers for the Cisco 7200VXR router.
Ensure that you meet these requirements before you attempt this configuration:
• Knowledge of how to create VLANs
For more information, refer to Creating Ethernet VLANs on Catalyst Switches.
• Knowledge of how to create VLAN trunks
For more information, refer to the Configuring VLAN Trunks section of Configuring VLANs.
The information in this document is based on these software and hardware versions:
•Catalyst 3550-48 that runs Cisco IOS® Software Release 12.1(12c)EA1 EMI
•Catalyst 2950G-48 that runs Cisco IOS Software Release 12.1(12c)EA1 EI
•Catalyst 2948G that runs Catalyst OS (CatOS) version 6.3(10)
Note: The configuration from the Cisco 7200VXR is not relevant, so this document does not show the configuration.
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