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Implement InterVLAN Routing

LAN Switching and Wireless – Chapter 6

Version 4.0

© 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

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Cisco Public 2 .Objectives  Explain to the satisfaction of a qualified instructor 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 Troubleshoot common inter-VLAN connectivity issues. All rights reserved. Inc.   © 2006 Cisco Systems.

Inc.Explain How Network Traffic is Routed Between VLANs in a Converged Network  Describe the routing options between VLANs © 2006 Cisco Systems. Cisco Public 3 . All rights reserved.

Inc. All rights reserved. Cisco Public 4 .Explain How Network Traffic is Routed Between VLANs in a Converged Network  Describe the role of interfaces and subinterfaces in supporting inter-VLAN routing © 2006 Cisco Systems.

Configure Inter-VLAN Routing  Describe the steps to configure inter-VLAN routing © 2006 Cisco Systems. Inc. Cisco Public 5 . All rights reserved.

Inc. All rights reserved. Cisco Public 6 .Configure Inter-VLAN Routing  Describe the steps to configure inter-VLAN routing © 2006 Cisco Systems.

Troubleshoot Common Inter-VLAN Connectivity Issues  Describe the common switch configuration Issues © 2006 Cisco Systems. Inc. All rights reserved. Cisco Public 7 .

Troubleshoot Common Inter-VLAN Connectivity Issues  Describe the common router configuration issues © 2006 Cisco Systems. Inc. Cisco Public 8 . All rights reserved.

Inc.Troubleshoot Common Inter-VLAN Connectivity Issues  Describe the common IP Addressing Issues © 2006 Cisco Systems. Cisco Public 9 . All rights reserved.

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. All rights reserved. Cisco Public 10 . Inc.

Cisco Public 11 . All rights reserved.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 correct VLAN –Configure each router subinterface with the correct IP address & VLAN ID  Verify configuration on switch and router © 2006 Cisco Systems. Inc.

© 2006 Cisco Systems. Inc. All rights reserved. Cisco Public 12 .