Sorry, this entry is only available in Portugues.

Sorry, this entry is only available in Portugues.

Hello Guys,

Continuing with the study for the BCMSN I came across a tip given by Jeremy Cioara in one of the Nuggets on Wireless. He commented about a very interesting game for the study of antennas, devices and topologies of wireless networks. The name of this game is Cisco Wireless Explorer and is available at this link.

Dei in a given game and found it very interesting character because of teaching that teaches how to put each device to complete a wireless topology.

In this URL, you can give more games to Cisco. (There went the other to give feedback).

Below, follows a screenshot of the game.

I am nearly completing the Nuggests. My next step is to read the book CiscoPress understanding of each concept in detail and practicing what is possible in Dynamips.

A big hug,

Maurício.

Hello Guys,

I would like to inform you that today was the HD updated the blog.

Were inserted all books CiscoPress official to study for each of the CCNP tests. Moreover, were included as simulated (TKS and P4S) to recommend its use only to identify the weaknesses in their study.

Another interesting tool for the study that was included is the video Mentors! All are narrated by the author Jeremy Cioara. For all that is good understanding of English is a perfect tool for setting the contents read in books.

Follow the link for the HD blog:
http://bentow.4shared.com

A Abrasive,
Maurício.

Hello Guys,

I created this article to compare the Packet Tracer 5.1 and Dynamips (using GNS3) associated with the use for the CCNA.

Each of these programs has its peculiarities, facilities and resources. I want to emphasize that these programs will be compared for their use in the certification CCNA, CCNP and then to recommend the following Dynamips without a doubt.

Packet Tracer

Officially, this software is available only to students of Netacad. In its version 5.1 software that makes the simulation of Cisco routers and switches. He is very good performance in question, as it does not perform the actual function of the equipment, but only simulated, not consume many resources of the machine, but does not provide all the commands of a router, many were destroyed. In the teaching aspect, the Packet Tracer is incredible! For all who are starting in the routing and the settings in yourSimulation mode, you can see the package or chassis / frame traveling from one device to another. Plus, if you click on the package as it passes through the devices you can see the whole process of (forward, discard, etc …) and the simulator tells you the stack of checks that it is to know where to forward the packet or frame ( check the routing table to verify NAT, NAT entry found, etc …). This information can be seen below.

Dynamips (GNS3)

While the PT is a simulator, the Dynamips is an emulator-only routers, or it gets the official IOS device and emulates in your machine. No question you have a router feature real in front could even bring it to route, linking the physical network adapter to the emulator. The full functionality of a router has a cost, processing and memory. You can emulate a 3600 router (IOS 12.3) with 64 MB of RAM, while a 7200 (IOS 12.4) needs to 128MB, not to mention the processing needed .. The Dynamips be suitable for all who know and routing and are well familiar with the route of a package based on the routing tables (and other details such as filter with ACL and etc …).

The GNS3 provides you the ease of designing your topology and turn it with Dynamips, similar to the Packet Tracer (to configure it to access Tutorial GNS3. Below is a screenshot of 4 running Dynamips routers 7200, each with 128, RAM allocated according to Laboratory IPv6 and OSPFv3.

Conclusion

The Packet Tracer, in my view, meet all the needs for setting the scope of the CCNA, through its simulator. Performs all functions without much cost of machinery, has an entire section which is important for teaching beginning and has a little more ease in time to create, or even import a laboratory.

The Dynamips is a complete platform, it emulates the device. You have full and unrestricted access to the IOS of the router, but you need a powerful machine. In the picture above was used a Core 2 Duo 1.8 Ghz w / 2GB of RAM. At the time of the bootstrapthe machine goes to 100% for a time to stabilize. If you want to do a short term level of professional certification from Cisco is interesting to use Dynamips to go testing and practicing a little more advanced commands and interface ‘real’ of a router.

For the CCNA, I am with Packet Tracer.

I hope this article has been very enlightening for all who have any doubt about which software to use the laboratories to achieve CCNA.

A strong hug personnel,

Maurício Bento Ghem.

Hello Guys,

Now I am CCNA certified, we will go to the next.

This tip goes to all who, like me, are on the way to CCNP certification (or above), or are tired of the Cisco Packet Tracer.

Is the installation and set-up package that already GNS3 install Dynamips and Dynagen to simulate a real Cisco router. The next image below:

Starting this tutorial GNS3

1. Please download the package of GNS3. In this package includes everything you will need to run the simulator. Available at:http://www.gns3.net/download.
2. Download the IOS will be used to emulate the corresponding Cisco router. In this case, we used the series in 2600, 3600 and 7200. IOS available, at your own risk, in: http://www.4shared.com/dir/7179596/e3a488a5/sharing.html
3. Installation is done like any Windows application, next -> next -> Finish.
4. Run the application.
5. Inside, you should include IOSs. Access the menu Edit -> IOS Images and supervisors in this screen, you should point the way to the IOS and set the model of router. Do this step for all who wish IOS.
6. Create the desired topology and press the play button to start all devices.
7. To connect to each one, click the right mouse button, and then Console.
8. In my case, I prefer to use Putty to manage the console. Then enter the menu Edit -> Preferences, General tab change the line start telnet% h% p by:
   

   start d: \ [localdoputty] \ putty.exe-telnet% h% p

I hope this tutorial helps you to create an initial scenario with Dynamips. Below are some interesting links that show many steps presented here through videos.

http://www.blindhog.net/gns3-how-to-build-an-internet-lab/

http://www.blindhog.net/tutorials/gns3-putty-console.htm

http://www.blindhog.net/gns3-installation-tutorial-for-linux/

A Abrasive staff,

Maurício.

Olá Pessoal,

Hoje, descobri um ótimo website para treinar o raciocínio rápido à respeito das VLSMs (Variable-lenght subnet masks). Ele apresenta diversas questões sobre endereçamento IP e máscaravas variadas, você pensa a resposta e clica para mostrar a resolução.

Vale a pena conferir.

Segue o link:

http://www.subnettingquestions.com/

Abração e ótimo carnaval!

Maurício.

Hello Everybody,

Surfing on the web, I found a great packet that puts each of these tools together:

• Dynamips
• Dynagen
• GNS3

All of that, in a Slax (Slax) Live-CD. It can be run directly from Pendrive via VMware or emulate, because they are only 254MB.
Please note that the CCNA is not perhaps the best tool. I PacketTracer the guide for those who have access to NetAcad, but even so this tool is great because it covers a complete solution.

Follow the link to download:

http://www.gns3-labs.com/wp-content/uploads/2008/misc/dynaslaxgns3.iso

Below, there’s a screenshot of this package.

Cheers,

Maurício.

Olá Pessoal,

Sejam bem-vindos ao novo website que em breve será reconhecido como referência para estudos da nova prova CCNA (640-802).

O objetivo do autor é de compartilhar todo o material de estudo utilizado para se preparar para a prova, apresentar um roteiro de estudos e estar apto a responder todas e quaisquer dúvidas.

O autor possui experiência de 2 anos no mundo de redes de computadores atuando na área de networking com Linux, mas não fugindo as configurações de equipamentos Cisco/Linksys.

Um abraço pessoal,
Maurício.