The ‘Networking’ Archives
Posted February 6, 2006 by

Changing an ACL on a Cisco Firewall

Although changing an ACL on a Firewall is almost exactly like a router, there are a couple nuances that people should know. Here are some tips and best practice material.

Category Cisco firewall

Posted February 1, 2006 by

The “Do” command

If you are running Cisco IOS 12.2(8) or better, you can use the “do” command to run privileged commands in global config mode. In layman’s terms, you can run “show” commands while config or config-if 🙂

Category Cisco networking

Posted January 26, 2006 by

How to disable Cisco router domain name lookup

Ever foul up a command on a router or switch and have to sit there and wait for five minutes while it translates for the “domain” ?

Category Cisco router

Posted December 19, 2005 by

Protocol Discovery

You can check and customize what protocols are running through your router with nbar protocol-discovery. This gives you packet count, byte count, 5 min bit rate, and 5 min max bit rate.

Category Cisco router

Posted September 28, 2005 by

Enable Cisco Password Encryption

When setting a password against the console, auxiliary and vty lines on a cisco router, the passwords will be displayed when viewing the config on the terminal screen unless password encryption is switched on. Keep reading to find out how to turn on this feature.

Category Cisco networking

Posted September 2, 2005 by

Recover EPROM Cookies on Cisco Router

Lightning produced during a thunderstorm can damage a router if a power surge occurs. This tutorial describes how to repair your router if lightning removes its EPROM cookie information.

Category Cisco router

Posted May 10, 2005 by


This guide can be useful if you need to configure the RSPAN session on your Catalyst 6500. In this example, we will see how to monitor more than one VLAN using the RSPAN VLAN. RSPAN has all the features of SPAN plus support for source ports and destination ports distributed across multiple switches. This allows […]

Category Cisco switch

Posted May 4, 2005 by

How to Determine to Which Switch and Port You Are Connected

Sometimes you need to know to which switch and port you are connected. I work for a community college with hundreds of switches. Here is a method I have found to work well.

Category Cisco switch

Posted December 6, 2004 by

Configuring a Frame-Relay Switch and Core Router Using One Router

Frame-Relay is a fundamental concept of networking. This tech-recipe will show how to configure a Frame-Relay switch and a core router within one router creating a hub-and-spoke topology.

Category Cisco router

Posted October 10, 2004 by

Cisco 2950 Switch: Remove Port from a VLAN

Removing a port from a VLAN on a Cisco 2950 switch is a simple operation. Follow the steps in this simple Tech-Recipe.

Category Cisco switch

Posted October 7, 2004 by

Creating Users on a Cisco Router

This tech-recipe will allow you to create multiple users on a router. It is also a handy tool to find out who did what and at what time (permitting logging is on and the correct date/time is configured).

Category Cisco router

Posted September 30, 2004 by

Enable Local Logging on a Cisco Router

In order to view the log of a Cisco router, you need to enable logging.

Category Cisco router