Recently, I have upgraded my Cisco 2650XM from 12.3 to 12.4 version; I use it to connect my PC to Internet, but something goes wrong. After the upgrading, I have tried to downlad an ISO image but the speed was very low (about 300KB/s and not 700KB/s). Mhhh this is strange! I have begun the troubleshooting but no error, no warning message. So I have reset my current configuration, but nothing… no real improvement.

Cisco IOS permits to define a shortcut to complex command. An alias can be configured to do anything that can be done at the command line, but an alias cannot move between modes, type in passwords, or perform any interactive functions. To create a command alias, issue the alias command in global configuration mode. The syntax of the command is alias mode command-alias original-command. Who have never typed repeatedly the commands show cdp neigh or show ip inter brief?

In this article I would explain some tips for securing Cisco administrative access. When creating passwords, keep these rules in mind: Make passwords lengthy Passwords should combine letters, numbers, and symbols. Passwords should not use dictionary words Change passwords as often as possible Strong passwords are the primary defense against unauthorized access to your router. The best way to manage passwords is to maintain them on an AAA server, but not all people can have/manage a AAA server. Cisco provides a number of enhanced features that allow you to increase the security of your passwords. For the basic configuration read [...]

When you read official documentation from cisco.com, there are some conventions that is opportune to know. Some examples of Cisco conventions: * Bold indicates text the user must enter or select, such as menu items, buttons, and commands.

Surfing the web, I have found a document concerning the undocumented cisco commands. The document is write by Lars Fenneberg (CCIE #7325) and it’s quite old (last revision in 2005). Certainly this is not a complete list, but I suppose that could be funny to discover some new commands… I have tried to found other document more exhaustive with no result.