It has a special IOU feature which will let you emulate real Cisco Switch both L2 L3 in GNS3 without any trouble.

In my case it was: 192.168.56.101:8000upload where 192.168.56.101 was the IP of the VM which was the Host-Only adapter of the Virtual Box instance.

Click Add. Then click Apply-Ok.

Under IOU image paste the location which you have copied from the image upload screen.

Im using i86bi-linux-l2-adventerprisek9-15.2d.bin for my L2 lab.

Cisco 3750 Switch Ios For Gns3 Iou L2 Keygen File Is

The Keygen file is actually a Python script that looks like.

There you go, your IOU image will now run absolutely error free.

While I wrote the blog post, I used older version than 2.1.3 because that time it was the latest.

However the GNS3 VM has no iface eth0 inet6 dhcp line in etcnetworkinterfaces (isnt using IPv6 itself) so no worries there.

What should be the command in shell to recognise the GNS3 name.

Simply following the steps I outlined on my post should work.

I appreciate that you put the original source reference at the beginning.