Issue
When I start VPSC, in GNS3 I get the following,
- When I try and click test under Dynamips I get Failed to start dynamips
- When I try and drag a router over to the main screen I get Cant start Dynamips on port 7200
Resolution
Copy the file cygwin1.dll from your VPCS folder into your dynamip folder.
Rick Donato is a Network Automation Architect/Evangelist and the founder of Packet Coders.
Latest posts by Rick Donato (see all)
- NETCONF & YANG: Automate Network Configs via Python - April 2, 2026
- Palo Alto – How to Configure Your Next-Generation Firewall - April 2, 2026
- How to Harden Linux SSH: Keys, Fail2ban & Ciphers - March 1, 2026
Want to become a networking expert ?
Here is our hand-picked selection of the best courses you can find online:
Cisco CCNA Certification Gold Bootcamp
Complete Cyber Security Course – Network Security
Internet Security Deep Dive course
Python Pro Bootcamp
and our recommended certification practice exams:
Delta Practice Tests