Most users deploy this image in or EVE-NG . Here is the general workflow:
To understand the capabilities of this virtual image, it helps to break down its highly structured filename fragment by fragment:
The 157-3.m3 image sits comfortably between IOL (lightweight but limited interface types) and CSR1000v (heavy, resource-intensive).
Since QEMU reads .qcow2 files more efficiently, convert the image using this command: Vios-adventerprisek9-m.vmdk.spa.157-3.m3
Because of this small resource footprint, a modern laptop with a 6-core processor and 16 GB of RAM can easily run topologies consisting of 15 to 20 concurrent virtual routers without breaking a sweat. Conclusion
Download the official cisco-iosv.gns3a appliance file from the GNS3 Registry. Import the template into the GNS3 client.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Most users deploy this image in or EVE-NG
: Denotes that the image is compiled to target a specific operational memory profile or baseline architecture footprint (frequently mapped to standard modular/mainline execution).
: Site-to-site tunnels using modern encryption algorithms.
This image originated directly from Cisco's internal development for CML (formerly known as VIRL). It represents the standard reference platform for legal, vendor-supported virtualization of legacy Cisco IOS environments. Technical Specifications and Resource Allocation Conclusion Download the official cisco-iosv
The vIOS image is part of Cisco's initiative to transition from physical hardware to virtualized, on-demand network functions.
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Note: If the file is still in .vmdk, you may need to convert it using:
: Advanced Enterprise Services . This is Cisco's premium software bundle containing full routing, security, and advanced automation features. The k9 means it includes strong cryptographic capabilities (such as SSH, HTTPS, and IPsec VPNs).
The major advantage of utilizing the 157-3.m3 virtualized router is its exceptionally lightweight resource consumption relative to its deep feature capabilities. Feature Attribute Technical Specification Single-core x86 (64-bit compatible wrapper) Default RAM Allocation 512 MB to 1024 MB (Max optimization at 1 GB) Disk Image Size ~134 MB to 135 MB Default Interface Limit Up to 16 GigabitEthernet Ports Throughput Capacity