© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 LAN Switching and Wireless Implement Inter-VLAN Routing Chapter 6 Modified by Pete Brierley

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 2 Objectives  Explain how network traffic is routed between VLANs in a converged network.  Configure inter-VLAN routing on a router to enable communications between end-user devices on separate VLANs – ‘Router-on-a-Stick’  Troubleshoot common inter-VLAN connectivity issues.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 3 Layer 3 Switch

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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 12 Summary  Inter-VLAN routing is the process of routing information between VLANs  Inter-VLAN routing requires the use of a router or a layer 3 switch  Traditional inter-VLAN routing Requires multiple router interfaces that are each connected to separate VLANs

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 13 Summary  Router-on-a-stick this is an inter-VLAN routing topology that uses router sub interfaces connected to a layer 2 switch. Each subinterface must be configured with: An IP address Associated VLAN number  Configuration of inter VLAN routing –Configure switch ports connected to router with corresponding VLANs –Configure each router interface with the corresponding IP address & VLAN ID  Verify configuration on switches and the associated router

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 14 END Inter-VLAN Routing Chapter 6