Layer 3 IOS image for GNS3 with Switching
This video shows you how to add a Cisco Layer 3 Switch onto the GNS3 network simulator program used to prepare for the Cisco Switching exams. This short post will show you how to upgrade the software on a single Cisco 3. IOS upgrade procedure is very easy but it is a bit different than the usual software image of previous switches i. The main difference is the Cisco 3. IOS- XE so you have to copy the. Download the required image from cisco.
GNS3 is one of best and my favorite graphical network simulator use for simulating network topologies and network Labs virtually in your personal computer. So GNS3 provide you the economical way for testing your networking skills at home. For creating topologies in GNS3 you are required the Cisco real IOS images. You need to add these IOS image in GNS3 in order to simulate these IOS for Networking LABS. If you are new to GNS3 and not clear how to use the Cisco IOS with GNS3 you can learn it from given link. Also visit How to use GNS3 step by step.
3725 Switch IOS image
Currently GNS3 runs only the routers IOS images, these is not way for direct running of cisco 2900 series IOS images in GNS3. But you can create the switching labs with router IOS image in gns3 by using the NM-16ESW module with router which have the switching features. This NM-16ESW module can be used with Cisco 3700 series IOS.
From here you can download this IOS image for your GNS3. If you need the IOS image for your real router and for your company you need to contact with Cisco, from where you can purchase IOS of your choice. Also you can get Cisco Devices and IOS images from Cisco Partners, you can find the nearest local partner. There is a complete list of partners on Cisco.com.
(You may required to sing-in with Gmail to download)
With this IOS you can perform the different switching labs on GNS3, which are as following:
- VLANs
- STP
- VTP
- Inter-VLan
With this IOS you can use the following Slot in GNS3 as shown in figure.
I have used this 3725 Switch IOS image with latest GNS3 and find no issue with it. You are request to share your experience in case of any problem with this 3725 switch IOS image. Thank you for reading this post, have a good day.. Bye… J
Cisco ISE specifications:
Cisco 3750 Firmware Download
Download the ISE image from below link
How to add ISE in EVE-NG
1. Login in EVE via SSH and Create ISE image folder in the EVE.
2. Using WinSCP / FileZilla via SCP or SSH connect to your EVE and upload ise-2.6.0.156.SPA.x86_64.iso file to this directory.
3. From EVE CLI go to newly created ISE folder and rename uploaded ISO file to cdrom.iso.
4. Create virtio HDD for ISE
5. Create new LAB in the EVE and add ISE node, connect it to Home Management cloud (Cloud0). Settings for ISE node are: CPU x4, RAM x16384M, 1 xEthernet. Console VNC, during install first time.
Qemu line in Imge edit:
-machine type=pc,accel=kvm -smbios type=1,product=KVM -serial mon:stdio -nographic -no-user-config -nodefaults -display none -vga std -rtc base=utc
6. Start ISE node and when setup prompt appears, shutdown ISE node.
7. Check lab ID number on EVE side bar “Lab details”, For Example:
8. EVE CLI: Convert image from lab tmp folder to defaults image location. In the command below is used lab ID (above) and as we added on lab single node, node ID is 1. ISE image foldername match what we created before. Number 0 in the line below is user POD number. Admin pod is 0.
9. Delete install CD ISO from image folder:
10. Do Fix permissions:
Download Working Cisco IOS For GNS3
Advanced instructions on how to make your image smaller in size (sparsify&compress). RECOMMENDED !
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- After done all the steps above and default image is created, you can compress its HDD and make it smaller.
IMPORTANT: for compressing an image you must have sufficient free space on your EVE host, free space must exceed the total space (200GB in this example, We created 200Gb virtio HDD for ISE) of the HDD you plan to shrink. The space needed can vary but will be the total space of the disk to be shrunk plus the size of the final sparsified and compressed image. To be safe you should have double the size of the HDD you want to shrink as free space on your EVE host. In our example we needed 200GB +GB of free HDD space. Once this process is done, the temporary file(s) will be deleted and free space reclaimed.
- From the CLI: go to your ISE image directory:
perform the sparsify command:
- It can take some time and another compressed image will be created in the same image directory
- now you can rename original hda.qcow2 file to orig.qcow2
- Rename the compressed image name to hda.qcow2:
- now you can test your new compressed image on a lab, just wipe the node and start it.
- If the compressed node works fine, you can delete your original source image:
You can also visit on eve-ng site, if you are facing any issue.