dynamips ☆
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Description:
Cisco 7200/3600/3725/3745/2600/1700 Router Emulator
Type: Formula  |  Latest Version: 0.2.23@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: emulator cisco networking ios gns3
Install: brew install dynamips
About:
Dynamips is a Cisco router emulator that accurately simulates the hardware of Cisco 7200, 3600, 3725, 3745, 2600, and 1700 series routers. It executes real Cisco IOS images, allowing for high-fidelity network topologies without physical equipment. This tool is the core emulation engine behind the popular GNS3 network simulator.
Key Features:
  • Runs unmodified Cisco IOS images directly on x86 platforms
  • Provides cycle-accurate simulation of MIPS and PowerPC processors
  • Supports emulated network modules and chassis for various router models
  • Integrates with GNS3 for graphical topology design and management
Use Cases:
  • Practicing for Cisco certification exams (CCNA, CCNP, CCIE) in a safe environment
  • Designing and testing complex network topologies before physical deployment
  • Developing and testing network automation scripts against real IOS features
Alternatives:
  • QEMU – QEMU is a more general-purpose machine emulator that can run full OSes, but Dynamips is specifically optimized for cycle-accurate Cisco IOS emulation.
  • EVE-NG – EVE-NG is a complete network emulation platform that includes Dynamips, but Dynamips itself is the underlying, standalone emulation engine.
License: GPL-2.0-only
Dependencies: elfutils
Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, arm64_monterey, arm64_big_sur, sonoma, ventura, monterey, big_sur, arm64_linux, x86_64_linux
Version History
Detected Version Rev Change Commit
Sep 13, 2025 6:43pm 0 VERSION_BUMP 587e078d
Sep 12, 2024 8:31am 0 VERSION_BUMP 7cf08d52
Jul 27, 2024 5:03pm 0 VERSION_BUMP 35d1b2ed
Feb 1, 2024 10:03pm 0 VERSION_BUMP 50aac158
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