Cisco 1700 Series Specifications download pdf (Page 50)

Chapter 4 Configuring Routing Among VLANs with IEEE 802.1Q Encapsulation

IEEE 802.1Q Encapsulation Configuration Task List

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Cisco 1700 Series Router Software Configuration Guide

78-5407-03

IEEE 802.1Q Encapsulation Configuration Task List

You can configure routing among any number of VLANs in your network. This

section provides procedures for configuring protocols supported with

IEEE 802.1Q encapsulation. The basic process is the same, regardless of the

protocol. The process involves the following:

• Enabling the protocol on the router

• Enabling the protocol on the interface

• Defining the encapsulation format as IEEE 802.1Q

• Customizing the protocol to meet the requirements for your environment

The configuration processes documented in this chapter include the following:

• Configuring IP Routing over IEEE 802.1Q

• Configuring IPX Routing over IEEE 802.1Q

Configuring IP Routing over IEEE 802.1Q

IP routing over IEEE 802.1Q extends IP routing capabilities to include support for

routing IP frame types in VLAN configurations, using the IEEE 802.1Q

encapsulation.

To route IP over IEEE 802.1Q between VLANs, you need to customize the

subinterface to create the environment in which it will be used. Perform these

tasks in the order in which they appear:

• Enabling IP Routing

• Defining the VLAN Encapsulation Format

• Assigning an IP Address to a Network Interface

Enabling IP Routing

IP routing is automatically enabled in the Cisco IOS software for routers. To

reenable IP routing if it has been disabled, use the following command in global

configuration mode:

ip routing

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Cisco 1700 Series Specifications Page 50