Configure A Cisco 1841 Router

The Cisco 1800 Series of integrated-service routers includes the Cisco 1841 router. The routers include features that improve security and speed. The Cisco 1841 serves the needs of small and medium-sized businesses, as well as branch offices or locations within large enterprises. Configure a Cisco 1841 router using the Setup Command Facility.


1. Wait for the startup sequence to complete. When the sequence finishes, the following message will appear on the configuration screen:

Would you like to enter the initial configuration dialog? [yes/no]:

Type “yes” and press the “Enter” key.

2. Type “yes” in response to the following prompt:

Would you like to enter basic management setup? [yes/no]:

3. Create and enter a router hostname following the prompt. Follow your network’s standard naming protocols if applicable. If your naming protocol requires that you use the router’s physical location, such as “3rd Floor Server Room,” to identify the router, do so.

4. Create and type in the following passwords when prompted. First, create an enable secret password, which is encrypted; an encrypted password has been scrambled so that it cannot be read. Next, create an unencrypted enable password, which you can view when viewing the router’s configuration file; you might at some point in the future view the router’s configuration file if you are trouble-shooting problems with the router. Finally, create a virtual terminal password, which secures access to the router through non-console ports. Non-console ports are connections to the router that you make remotely, as opposed to those that you make when you are physically standing close to the router.

READ  Things To Buy Nerdy People

5. Type “Yes” to configure SNMP Network Management following the prompt, or “No” if you do not need it for your network. Enter the associated public community string if you entered “Yes”. The system will display a summary of the interfaces available for you to use.

6. Enter an interface that the router will use to connect to the management network from the displayed summary of available interfaces.

7. RJ-45 connectors allow you to plug network cables into a router.

Type “Yes” to enable FastEthernet support, which allows the router to transmit data through the network at a fast rate of 100 megabits per second. Type in “Yes” to enable RJ-45 connectors, which are the plugs on the router that look like oversize telephone plugs, and into which you insert network cables. Type in “Yes” to enable duplex-mode operations, so that data can travel both to and from the router simultaneously, instead of traveling in only one direction at a time. Enter an IP address if you want to set an address manually. When you have finished, the router will display the new configuration and prompt you to save it.

8. Type “2” at the prompt to save the new configuration to “nvram”, and exit.