Configure Enhanced Interior Gateway Routing Protocol (EIGRP) with Security Device Manager
Introduction      Requirements      Configure EIGRP      Next Step      Troubleshoot the Procedure      Related Information	Download PDF   Configure Enhanced Interior Gateway Routing Protocol (EIGRP) with Security Device Manager

Introduction

This document explains how to configure Enhanced Interior Gateway Routing Protocol (EIGRP) on your router with Security Device Manager.

EIGRP integrates the capabilities of link-state protocols into distance vector protocols. Additionally, EIGRP contains several important protocols like Diffusing Update Algorithm (DUAL) that greatly increase its operational efficiency relative to other routing protocols. Key capabilities that distinguish EIGRP from other routing protocols include fast convergence, support for variable-length subnet mask, support for partial updates, and support for multiple network layer protocols.

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Requirements

To perform the steps described in this document, you need to have these items:

• Complete the initial configuration in Configure Your Router with Security Device Manager document.

• Complete the Worksheets from the Site Survey:

  • LAN Addressing Worksheet

  • Secure Server VLAN Addressing Worksheet

  • Guest VLAN Addressing Worksheet

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Configure EIGRP

To Configure EIGRP, follow these steps:

1. Open a web browser and type http://router IP address in the Address field. The router's IP address is the IP address that you entered in the LAN Addressing Worksheet (L6A).

   Note: For further information about how to launch SDM, refer to Configure Your Router with Security Device Manager.

2. Click Configure.

   

3. Click the Routing tab.

   

4. In the Routing screen, next to Dynamic Routing, select the EIGRP tab and click Edit.

   

5. In the Edit IP Dynamic Routing window, make these changes:

   1. Select EIGRP.

   2. Click Add to enter Autonomous System Number which enables EIGRP routing process.

   Note: An autonomous system (AS) is a collection of IP networks and routers under the control of one entity that presents a common routing policy to the Internet. Each EIGRP routing process is identified by an autonomous system (AS) number. Routers with the same AS numbers exchange the routing information with each other, which results in a routing domain. Routers with dissimilar AS numbers does not exchange any routing information by default.

   

6. In the Add a EIGRP window, make these changes.

   1. In the Autonomous System Numbers field, enter the Autonomous System Number provided to you by your Internet Service Provider.

   2. Click Add.

   Note: Check with your Internet Service Provider (ISP), to obtain information about your Autonomous System Numbers. If you need further assistance contact SMB TAC.

   

7. In the Add a Network window, enter these values

   1. In the Network field, enter the network addresses or routes that you want the router to advertise to its neighbours. For example enter the Default network router IP address that you entered in field L6A of the LAN Addressing Worksheet.

   2. In the Wildcard Mask field enter 0.0.0.255 if you use subnet mask of 255.255.255.0. The subnet mask is entered in field L2A of LAN Addressing Worksheet.

   Note: The wildcard mask is an inverse mask that compares a given address with interface addressing to determine whether EIGRP uses this interface.

   

   Click OK.

8. Repeat step 7 to add the Guest and Secure Server network router IP addresses. Use the Secure Server network router IP address that you entered in field L6C of the Secure Server VLAN Addressing Worksheet and Guest network router IP address from the field L6D of the Guest VLAN Addressing Worksheet.

   

   Click OK.

   Note: In the Edit IP Dynamic Routing window, next to Available Interface List, you can check the box next to the interface if you do not want it to send routing updates to its neighbour. However, the interface still receives routing updates.

9. Click on Autonomous System Number 100 to view the network configured and being advertised to neighbour routers.

   

   Click OK.

10. A Commands Delivery Status window displays.

    

    Click OK.

11. After you have configured your router for EIGRP, you can verify the EIGRP configurations under Dynamic Routing of the Routing screen. Click the Edit tab to view the networks advertised for EIGRP process.

    

12. Click File > Write to Startup Config to save your configuration.

13. In the SDM Write to Startup Config Warning window, click YES.

    

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Next Step

You have now configured EIGRP on your router.

To make further changes to your router, refer to the Router Support Page.

To configure other devices in your network, refer to the Configuration Overview Page.

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Troubleshoot the Procedure

This section provides information about common problems that you may encounter. If this information does not solve your problem, contact the SMB Technical Assistance Center (SMB TAC) for assistance.

Causes	Cause(s) and Suggested Solution(s)
Check the remote neighbour router for EIGRP configuration.	Contact the SMB Technical Assistance Center (SMB TAC) for further assistance.

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Related Information

• Configure Your Router with Security Device Manager
• Set Up Internet Security on a Cisco Router
• Site Survey
• Cable Descriptions