CiscoZine » Tips

Slow ADSL with 12.4 IOS version?!

Fabio Semperboni — Thu, 05 Nov 2009 22:25:00 +0000

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.(...)
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How to create shortcut command

Fabio Semperboni — Wed, 09 Sep 2009 20:19:54 +0000

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?(...)
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Tips for securing Cisco administrative access

Fabio Semperboni — Thu, 16 Apr 2009 20:57:03 +0000

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 this article.(...)
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© Fabio Semperboni for CiscoZine, 2009. | Permalink | One comment
Post tags: Advanced configuration, Secure a router, Tips

Cisco Technical Tips Conventions

Fabio Semperboni — Mon, 08 Sep 2008 21:52:40 +0000

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.(...)
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Undocumented Cisco commands

Fabio Semperboni — Sun, 07 Sep 2008 22:08:17 +0000

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.

(...)
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© Fabio Semperboni for CiscoZine, 2008. | Permalink | One comment
Post tags: Hidden commands, Tips, Undocumented Cisco commands