Networks Analyzed @ Netralized

Troubleshooting guidelines for switching and VLANs

jim — Fri, 16 Nov 2007 18:02:35 +0000

After configuring your switch with Vlans you notice that something is wrong. I will give you a simple guide to troubleshoot Vlans and make things work again. First check for Layer 1 and Layer 2 issues Is the cable plugged into the correct port? Is the link light on, [...]

Enabling the Web Interface on your Router

jim — Wed, 14 Nov 2007 19:46:58 +0000

With this article I will go you through the configuration of enabling the web interface of your router. Before showing you the commands, that are quite simple, I will explain what we will achieve with them. Enabling an HTTP server on the router allowing the administrator by using any web browser to configure the router by pointing [...]

VoIP Introduction

jim — Mon, 12 Nov 2007 19:22:47 +0000

Voice over IP (VoIP) is a major networking application and nowadays is appearing everywhere. VoIP is running over common high speed connections as: Ethernet, Frame Relay, ISDN, ATM, DSL, Cable and other. With the VoIP technology we can transmit the analog voice signals of our telephone, through the traditional data network. This technology works [...]

Discovering active hosts

jim — Wed, 07 Nov 2007 20:31:31 +0000

If you want to discover all the active hosts on your subnet from your routers console, you can perform a ping in the broadcast address of your subnet. Keep in mind that all the active nodes on your subnet should respond to that ping. As a tip I can tell you that this kind of [...]

Tuning your routers clock

jim — Mon, 05 Nov 2007 21:37:37 +0000

In this article I will give you three useful commands for setting up your router’s clock. If you are wondering why the router’s clock is important, just think the syslog messages. Every syslog message has the time that the event occurred. Imagine a hacking attempt that has been tracked by your syslog, if the clock of [...]

No, i Won’t Fix Your Computer!

admin — Fri, 02 Nov 2007 18:00:27 +0000

Hello again, after getting some feedback from the Computer Problems article, i thought i should write an article about the next big decision you will have to make. Situation is like this: You’re enjoying with your afternoon with your friends having fun. Your cellphone rings and once again it’s the mr. IWontSpendAMinuteFixingMyComputerCauseIKnowPeopleWhoWillDoItForMe, starting once again the [...]

Firefox Mobile Version Announced

jim — Tue, 30 Oct 2007 21:17:47 +0000

The Mozilla Corp. has announced the development of a completely functional Firefox web browser for mobile phones. According to a statement made by Mike Schroepfer, vice-president of the department of Mozilla’s engineers, the official publication of Firefox for mobile phones will be released at the end of 2008. He has also announced the development of Firefox [...]

My Friends Don’t Help me With my Computer Problems!

angel — Sat, 27 Oct 2007 06:29:13 +0000

As you can guess correctly this is not an article purely for networks, but it concerns me for quite some time so i would be more than happy to get some feedback on it. I am into computers for more than 10 years and i think many of you reading this blog, would be using computers [...]

Configure the Ip Address and Default Gateway of Your Switch

jim — Wed, 24 Oct 2007 17:00:36 +0000

In this article I will show you how to configure an Ip address and a default gateway in your manageable switch. But first things first, Why is an Ip address and default gateway needed in the switch? After all switches are OSI Layer 2 devices that care only about MAC addresses. The modern switches are manageable and support [...]

A better way to scan wireless networks

jim — Mon, 22 Oct 2007 17:08:51 +0000

Many times a lot of us who use laptops or desktop computers which are equipped with wireless network cards, have tried to scan an area for available wireless access points. We usually use the default wireless network scanner of the Windows operating system. But is this the most efficient tool for this job? Surely not. There is [...]