Long time ago before I attend my CCNA in Penang, I have no idea how those Network Administrator/IT Engineer configure Cisco router and switch. Just know they have good knowledge on the cisco coding.

While configure a cisco router, there are few kind of mode can be use:

1. User Mode
2. Priviledge Mode
3. Config Mode
4. Interface Mode
5. line mode

Cisco Router Basic Configuration Need:

1. Password + Secret
2. Hostname
3. Interface (IP and subnet mask, no shut, and clock rate)
4. Line configuration

Below are some coding on Basic configuration for cisco router: (more…)

Posted by calvyn | 5 Comments »

Back to month ago, where by I attend my CCNA course, and the CCNA’s tutor provide us a software name “Packet Tracer“, a Cisco simulation software, to learn how to use this software, the CCNA’s tutor also provide use 6 module of Packet Tracer Video tutorial, and I manage to upload 2 module of video tutorial begining of this month. You can get back the video tutorial at Packet Tracer Video Tutorial Part 1.

Video Tutorial 3 - Troubleshooting on Packet Tracer

In this video tutorial, the student are using the wrong cable type to connect between Cisco switch and workstation, the diagram indicated red dot, which mean traffic cannot pass through. The tutor have advice the student how to troubleshoot, by checking on the cable type, to change from cross-over cable to straight-through cable. Problem have been solve after change the cable type. Green dot appear, and the student able to send packet from 1 workstation to another workstation. This is how the Cisco simulation software works.

If 1 end green dot (Workstation), 1 end orange dot (Switch) which mean the switch are using spanning tree protocol, it require some time to change the color to green dot (1 or 2 minute)

Video Tutorial 4 - Using Packet Tracer in Presentation

The tutor show how to use packet tracer to open the interface on the router, do Cisco basic configuration on the router, put the hostname as “myrouter” and also show run (Show all the current configuration)

Router > en
Router # config t
Router(config) # hostname MyRouter
MyRouter(config) # exit
MyRouter # sh run

Soon I will update another 2 more module on packet tracer video tutorial 5, and video tutorial 6. Stay Tune

Posted by calvyn | 4 Comments »

As I mention before on the Packat Tracer, a Cisco simulation software, now I would like to share Packet Tracer Video Tutorial, (Tutorial 1 and Tutorial 2) which will guide you through step by step how to start using Packet Tracer, to simulate the cisco product and network design; test around the setting before deploy a real network.

Video Tutorial 1 - What If

On the 1st video tutorial, tutor guide the student how to make a workstation on this simulation software, putting IP address, and connected the workstation with the hub with using straight-through cable. Other then using hub, we can use switch too. After connected the switch/hub with the workstation, it will have green dot, which mean traffic can pass through.

If 1 end green dot (Workstation), 1 end orange dot (only on switch) which mean the switch are using spanning tree protocol, it require some time to change the color to green dot (1 or 2 minute)

Video Tutorial 2 - Visualization

This video tutorial show you how packet tracer can capture the content of packet go through the network. With using capture and forward command, when the packet arrive the 1st switch, open the content of the packet, it will show the content of packet header are. It is very cool information that will let the student know how the packet transmit, and what kind of information that really attach to the header when reach another device.

More information on this Packet Tracer, you can get it on (more…)

Posted by calvyn | 5 Comments »

IT Engineer Life on Linksys 4400N Access Point

Ops, another 2 parcel receive at my table, according to sales department, one is linksys 4400N access point, and another is linksys switch, which need to configure and install at client house.

The switch is a manageable switch, but I’m not require to configure it, the customer just plug and play, which is home use only (Customer are rich to buy expensive switch for home use)

For this Linksys 4400N Access point, due to the customer house are very big, the wifi signal coverage require very huge, that why they require to use 802.11n Access Point.

For this N protocol, it is same as for previous version 802.11a, 802.11b and 802.11g, but it add another new function which is Multiple Input and Multiple Output (MIMO), and the coverage are double wider.

IT Engineer Experience:
I have personally tested and experience this Linksys 4400N access point. I place this access point at my house’s sitting room, and my house located at 5th floor.

There are no issue for me to access my house Wifi signal while I sitting at ground floor. It still have 1 to 2 bar signal, as my windows’s wifi status shows. (more…)

Posted by calvyn | 10 Comments »