Thursday, July 30, 2015

GNS3 Workbench 12.3 - Fixing "VPCS program '/home/user/vpcs' is not accessible" Error

GNS3 Workbench is an excellent VMware appliance that bundles Linux Mint, GNS3, and a ton of pre-configured exercises that you can use to practice your Cisco networking skills. Best of all, it's completely free!

In GNS3 Workbench 12.3, there is a slight misconfiguration with VPCS out of the box. When you are in an exercise and try to launch VPCS via Tools > VPCS multi-host, you get an error stating "VPCS program '/home/user/vpcs' is not accessible".


Fortunately, this is an easy fix. The issue is that GNS3 has the wrong path to VPCS specified.

To get the correct path, open a terminal and run the which vpcs command. Running this command indicates that the correct VPCS path is /usr/bin/vpcs.


Now go to Edit > Preferences, and go to the VPCS section. Update Path to VPCS: with the correct path and click OK.

Update Path to VPCS: with the correct path.

After doing this, you should be able to launch VPCS without any issues.


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