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July 15, 2016 by VCEWin

How to Add Router IOS Image in GNS3

In order to perform any router-based hands-on lab exercise in GNS3, first, you need to download ISO images for routers. After downloading IOS images, you need to add router IOS image in GNS3. In the previous posts, we have discussed a lot about how to download and use GNS3. In this post, we will explain how to add IOS image in GNS3. We assume that you have already downloaded, the router IOS images for GNS3. If you have not yet done it, click the following link to download the Cisco IOS image for GNS3.

  • Download and Install GNS3.
  • Download Cisco IOS Images for GNS3.
  • How to Use GNS3.

Now, you need to add router IOS image in GNS3. To do so, you need to perform the following steps: [Read more…]

July 15, 2016 by VCEWin

How to Add a Virtual Machine in GNS3

GNS3 is really an amazing simulator that allows you to do a lot. It is not just limited to adding Cisco routers and switches, it also allows you to add Juniper routers. In addition, GNS3 let you add VirtualBox and VMware virtual machines so you can perform lab exercises similar to perform in a real-life environment. In this post, we will explain how to add a virtual machine in GNS3. For this, we will add a VMware virtual machine in GNS3. Similarly, you can add a VirtualBox machine in GNS3. Choosing the type of virtual machine depends on your choice and comfort. However, steps will remain same both types of VMs.

In order to add a virtual machine in GNS3, you need to perform the following steps:

  1. First, create a virtual machine in VMware workstation. We assume that you have already created a virtual machine using VMware workstation. In the following figure, you can see we have created two virtual machines named SVR1 and SVR2. In this demonstration, we will add SVR1 virtual machine to GNS3.add VMware virtual machine to GNS3
  1. If you have not created any virtual machine yet or facing any issue to create the virtual machine, visit the following link for the step by step instructions.

[Read more…]

July 15, 2016 by VCEWin

How to Add Cisco ASA in GNS3 – A Step By Step Guide

ASA stands for Adaptive Security Appliance. It is the fundamental operating system for the Cisco ASA family products. It provides enterprise-level firewall abilities for ASA devices. GNS3 supports the Cisco ASA that can be used to perform hands-on practice labs for study purpose. Since GNS3 is a simulated platform, it may not support all of the features as supported by a physical Cisco ASA device. However, for the practice and self-study purposes, it is really great to add Cisco ASA in GNS3.

In this post, we will explain how to add Cisco ASA in GNS3 in such a detailed steps that a candidate having the basic knowledge of GNS3 can do it easily.

Steps to Add Cisco ASA in GNS3

In order to add ASA in GNS3, following steps need to be followed:

  1. Download the ASA image file and extract the ASA files in a folder such as E:\GNS3\ASA. You will see three files after extraction.

Download Cisco ASA image file. [Credit Mediafire]

  1. In the GNS3 console, open the Preferences window, select Qemu VMs and then click New.
  2. In the New QEMU VM template window, select ASA from the Type drop-down list and then click Next.Adding Cisco ASA in GNS3
  3. In the QEMU VM Name page, specify a name and click Next.
  4. In the QEMU binary and memory page, customize memory size or accept the default memory size and then click Next.
  5. In the Disk Image page, (select an existing image, if available or select the New Image radio button to create a new one) type ASAImage in the Disk image text box and then click Create.using ASA in GNS3
  6. In the QEMU Image Creator window, select the appropriate image format such as Qcow2 and then click Next. In the Qcow2 options page, click Next.Selecting Cisco ASA Image format
  7. In the Size and location page, click Browse and select the location where you want to store it or accept the default location and then click Finish.
  8. The Disk image page will return, click Next.Cisco ASA image Size and Location
  9. In the ASA VM page, select the New Image radio button. Click Browse to add the initial RAM disk file and select the initrd file that you have extracted. In the Image message box, click Yes.
  10. Click again Browse to add Kernel image file and select the vmlinuz file that you have extracted. In the Image message box, click Yes again and then finally click Finish.Selecting initrd and kernel image for Cisco ASA
  11. Click Edit to open the Node properties window. In the General settings tab, set the Memory size as 2048 MB (otherwise, you might get an error due to insufficient RAM).
  12. Next, select the Network tab and then select the Use the legacy network mode check box (to avoid any network error).Use the legacy network mode for ASA in GNS3
  13. Next, select the Advanced settings tab. In the Kernel command line text box, type no-hlt -append ide_generic.probe_mask=0x01 ide_core.chs=0.0:980,16,32 auto nousb console=ttyS0,9600 bigphysarea=65536
  14. In the Options text box, type -vnc none -vga none -m 1024 -icount auto -hdachs 980,16,32Cisco ASA Node properties options in GNS3
  15. Close the Node properties window and drag the Cisco ASA into the work view area. Select and right-click ASA-1, select Start to start it and open the console of ASA.Starting cisco ASA in GNS3

Opening Cisco ASA Console

Please wait until the files are uncompressed. You have done your job, you can take a cup of coffee because it may take half or an hour to load the files. Once the files are uncompressed the ASA console prompt will be displayed, as shown in the following figure.Cisco ASA CLI prompt

Now, you have successfully added Cisco ASA in GNS3. Hope, you have loved it. Please like and share the post as it will encourage us to serve you more articles.

July 14, 2016 by VCEWin

How to Connect Router to Cloud in GNS3

Sometimes, it is important to connect the routers to cloud in GNS3, especially when you plan to perform lab exercises on a Laptop that is not connected to a network. There is a solution that allows you to connect GNS3 routers to your local system using the loopback adapter. In this post, we will explain how to connect routers to the Cloud in GNS3 on your local system. However, we assume that you have already installed and configured GNS3 on your system. If you are new to GNS3, we would highly recommend you to visit the following links before to proceed next.

  • Download and install GNS3
  • How to use GNS3
  • Download GNS3 IOS images

For this, first of all, you need to install a loopback adapter on your local system. Let’s see how to install the loopback adapter on your local system.

  1. Open the Device Manager. To do so, type devmgmt.msc in the Run dialog box, and then press Enter.
  2. In the Device Manager window, select and right-click your computer name and then select Add legacy hardware as shown in the following figure.devmgmt.msc

[Read more…]

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