The tutorial discuss the use of software to run Cisco Virtual IOS (vIOS). Cisco vIOS is shipped and supported as a part of the Cisco's One Platform Kit () that is distributed in form of virtual machine.

Here some awesome articles on how to run Cisco Switch(CLI) on GNS3 Necessary downlaods IOU Virtual Vmware Image Cisco L2 and L3 Images for IOU The IOU Vmware zip file contains a full load of stuffs. Running Cisco Switches on GNS3. Here some awesome articles on how to run Cisco Switch(CLI) on GNS3. In the same way you can bring. Add Cisco switches in GNS3 by using the GNS3VM and IOU (IOS on Unix). Step-by-step with screenshots. Add Cisco switches in GNS3 by using the GNS3VM and IOU (IOS on Unix). This article explains you how to add switches in GNS3, step-by-step with screenshots. OVA is a special file format that contains Virtual Appliances.

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It might be downloaded with Cisco.com account. Currently, it is not required to have Cisco account associated with service contracts, Bill-to IDs, or product serial numbers in order to download onePK.

Software Prerequisites • Host OS - any 64 bit Linux OS • emulator and virtualizer compiled with x86_64 support • • GNS3 0.8.7 • Cisco all-in-one-VM-1.2.1-194.ova virtual machine Minimum Hardware Requirements • CPU with hardware virtualization support ( or virtualization extensions) • Storage - 10 GB • RAM - 2000 MB • RAM vIOS - 384 MB Script for Extracting vIOS from All-In-One VM is a Linux bash script that helps you to extract vIOS vios-adventerprisek9-m.vmdk from all-in-one VM file. Download all-in-one.ova file and assign executable privileges to the script. $ chmod +x extract_vios.txt Then you can run the script as it is shown below. The only user input is selecting path to all-in-one VM file and entering a root password needed for temporary mount of raw image. $./extract_vios Script Requirements • VirtualBox or Qemu installed • +21GB free hard disk space to convert vmdk to raw format • Root password to mount raw image Configuration Steps for Extracting vIOS from All-In-One VM 1. Download the onePK All-In-One Virtual Machine 2.

Extract Files from Virtual Machine $ tar xvf all-in-one-VM-1.2.1-194.ova Picture 1 - Content of OVA Tarball The virtual disk all-in-one-VM-1.2.1-194-disk1.vmdk contains vIOS image that we are going to extract from the disk. 3. Extract vIOS from Virtual Disk We can directly extract the vios image out of all-in-one-VM-1.2.1-194-disk1.img file. A) Convert vmdk to raw disk Use qemu-img utility to convert vmdk disk type to raw disk.

$ /usr/local/bin/qemu-img convert -O raw all-in-one-VM-1.2.1-194-disk1.vmdk all-in-one-VM-1.2.1-194-disk1.img b) Check the available partitions inside the virtual disk $ fdisk -l all-in-one-VM-1.2.1-194-disk1.img Picture 2 - Available Partitions c) Determine where the partition with vIOS image starts inside the virtual disk The first partition flagged with boot option contains vIOS image. The partition starts at the sector 2048. The sector size is 512 bytes. When we multiple the starting sector number and the sector size we calculate the offset where the partition starts ( 512 x 2048 = 1048576 ).

$ echo '2048 * 512' bc 1048576 d) Mount the partition and extract vIOS image from partition Thanks the computed offset we can mount the partition and extract vIOS image from partition. $ mkdir mount-point $ sudo mount -o loop,ro,offset=1048576 all-in-one-VM-1.2.1-194-disk1.img mount-point/ $ tar xvf./mount-point/usr/share/vmcloud/data/images/vios-adventerprisek9-m.ova -C /home/brezular/ The expected result is the file vios-adventerprisek9-m.vmdk located in a directory /home/brezular/. Configure GNS3 to Run vIOS Disk Start GNS3 and create a new project. Navigate to Edit -> Preferences -> Qemu -> General Settings. Configure Qemu general parameters and click test button. Picture 3 - Qemu General Settings Go ahead and configure GNS3 Guest settings.