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Configure Static Routing on Cisco Routers using SDM

     Introduction
     Requirements
     Static Routing Overview
     Configure Static Routing
     Next Step
     Troubleshoot the Procedure
     Related Information

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Introduction

This document explains how to configure Static Routing on a Cisco router using SDM. Static routing is used when the network is fairly simple or the overhead involved with setting up dynamic routing protocols is not desirable.

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 LAN Addressing Worksheet from the Site Survey.

Note: This document uses examples from SDM version 2.5. Other versions of SDM may display a different output.

Static Routing Overview

Routers need to know how to reach a network so as to forward the packets destined to that network. In order to accomplish this, the router should either be directly connected to the destination network or it must be configured accordingly to reach to a network to which is not connected. In the latter case the router must either run dynamic routing protocols, which send routing updates between each other, or it should be configured with a route to reach that destination network. This method of configuring the router manually to reach to a destination network is called Static Routing.

In this document, we consider a scenario where the router is directly connected to a LAN network 192.168.1.0. However, for the users in this LAN network to reach other networks i.e. 192.168.2.0 and 192.168.3.0, the router needs to be configured using static routes.

Configure Static Routing

Follow the steps to configure static routing on Cisco routers:

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.
Click Configure.
Click Routing from the left side menu.
Click Add to add a new static route.
Follow these steps in Add IP static Route window:
1. Enter the destination network address in the Prefix box, and the network mask in the Prefix mask box.
2. In the Forwarding(Next Hop) section, choose the exit interface of the router which can be used to reach the destination network.
3. If you are not sure about the exit interface then choose the IP address radio button and enter the IP address of the next hop router to which this router can forward the packets to reach to the destination network.
Click OK.
Click Add again to enter the second static route.
In the Add IP static Route window, enter these values:
1. Enter the destination network address in the Prefix box, and the network mask in the Prefix mask box.
2. In the Forwarding(Next Hop) section, choose the exit interface of the router which can be used to reach the destination network.
3. If you are not sure about the exit interface then choose the IP address radio button and enter the IP address of the next hop router to which this router can forward the packets to reach to the destination network.
Click OK.
Click Save to save this configuration to router’s flash.

Next Step

You have now configured Static Routing 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.

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.

Problem	Cause(s) and Suggested Solution(s)
You want to check if the routes are configured properly, and you are getting the connectivity to the remote networks.	Do a ping from the router or any of the hosts in your network to some host in the destination network. If the configuration is fine you should get ping reply.
You are unable to connect to the router with Security Device Manager (SDM).	Refer to Configure Your Router with Security Device Manager.