Resetting to Factory Defaults

Table Of Contents

Resetting to Factory Defaults

This Feature Not Supported


Resetting to Factory Defaults


You can reset the configuration of the router to factory defaults and save the current configuration to a file that can be used later. If you changed the router's LAN IP address from the factory value 10.10.10.1, you will lose the connection between the router and the PC because that IP address will change back to 10.10.10.1 when you reset.


NoteThe Reset to Factory Defaults feature is not supported on Cisco 3620, 3640, 3640A, and 7000 series routers.

The Reset to Factory Defaults feature is not supported when you are running a copy of SDM installed on the PC.


Before you start, you should understand how to give your PC a static IP address in the 10.10.10.0 subnet so that you will be able to reconnect to the router after you reset it. The factory configuration does not include a DHCP server configuration on the router, and the router will not give an IP address to the PC.

Understanding How to Give the PC a Dynamic or Static IP Address After You Reset

If you want to use SDM after you reset, you have to give your PC a static or dynamic IP address, depending on the type of router that you have. Use the following table to determine the type of address to give the PC.

Routers Needing Dynamic Addresses
Routers Needing Static Addresses

SB10x
Cisco 83x, 85x, and 87x
Cisco 1701, 1710, and 171x
Cisco 180x and 181x

Cisco 1721, 1751, and 1760
Cisco 1841
Cisco 2600XM, and 2691
Cisco 28xx, 36xx, 37xx, and 38xx


The process for giving the PC a static or dynamic IP address varies slightly depending on the version of Microsoft Windows the PC is running.


Note Do not reconfigure the PC until after you reset the router.


Microsoft Windows NT

From the Control Panel, double-click the Network icon to display the Network window. Click Protocols, select the first TCP/IP Protocol entry, and click Properties. In the Properties window, select the Ethernet adapter used for this connection. Click Obtain an IP Address Automatically to obtain a dynamic IP address. For a static IP address, click Specify an IP address. Enter the IP address 10.10.10.2 or any other address in the 10.10.10.0 subnet greater than 10.10.10.1. Enter the subnet 255.255.255.248. Click OK.

Microsoft Windows 98 and Microsoft Windows ME

From the Control Panel, double-click the Network icon to display the Network window. Double-click the TCP/IP Protocol entry with the Ethernet adapter being used for this connection to display TCP/IP Properties. In the IP address tab, click Obtain an IP Address Automatically to obtain a dynamic IP address. For a static IP address, click Specify an IP address. Enter the IP address 10.10.10.2 or any other address in the 10.10.10.0 subnet greater than 10.10.10.1. Enter the subnet 255.255.255.248. Click OK.

Microsoft Windows 2000

From the Control Panel, select Network and Dialup Connections/Local Area Connections. Select the Ethernet adapter in the Connect Using field. Select Internet Protocol, and click Properties. Click Obtain an IP Address Automatically to obtain a dynamic IP address. For a static IP address, click Specify an IP address. Enter the IP address 10.10.10.2 or any other address in the 10.10.10.0 subnet greater than 10.10.10.1. Enter the subnet 255.255.255.248. Click OK.

Microsoft Windows XP

Click Start, select Settings, Network Connections, and then select the LAN connection you will use. Click Properties, select Internet Protocol TCP/IP, and click the Properties button. Click Obtain an IP Address Automatically to obtain a dynamic IP address. For a static IP address, click Specify an IP address. Enter the IP address 10.10.10.2 or any other address in the 10.10.10.0 subnet greater than 10.10.10.1. Enter the subnet 255.255.255.248. Click OK.

To Reset the Router to Factory Defaults:


Step 1 Leave Save Running Config to PC checked in Step 1 on screen, and specify a name for the configuration file. SDM provides a default path and name. You don't have to change it unless you want to.

Step 2 Review the information in the Understand How to Reconnect box in Step 2 on screen so that you will be able to establish a connection to the router after you reset. If necessary, review the information in Understanding How to Give the PC a Dynamic or Static IP Address After You Reset.

Step 3 Click Reset Router.

Step 4 Click Yes to confirm the reset.

Step 5 Follow the procedure in the' Understand How to Reconnect box in Step 2 to reconnect.


Resetting the router to its factory default configuration changes the router's inside interface IP address back to 10.10.10.1. The next time you log on to the router with your browser, enter the IP address 10.10.10.1 in the browser's location field.

This Feature Not Supported

This window appears when an SDM feature is not supported. This may be because the router is running a Cisco IOS image that does not support the feature, or because SDM is being run on a PC and cannot support the feature.