Download Qemu guest IOS image for gns3

Qemu Image for GNS3:

Qemu Guest is used as a virtual PC in GNS3, one of the stable IOS image for qemu is linux-microcore-2.10. You can download it for this link : QEMU IMAGE FOR GNS3

For configuring IP address and gateway of qemu host in Gns3 you can visit configure Qemu in Gns3.

Download IOS for EthernetSwitch in GNS3 | IP addresses may not be configured on L2 links (solved)

Layer 3 switch for GNS3:

In GNS3 VirtualBox Edition Ethernet switch router is nice addition, using this emulated device you can perform different switching task like:

·         VTP (VLAN trunking Protocol)
·         VLANS
·         Inter-VLAN routing
·         SVI
You can assign an IP address to Ethernet switch router’s interfaces. You may receive the following error while configure the IP address for interface of this emulated device (Ethernet switch router).
“% IP addresses may not be configured on L2 links.”
If you find this type of error message then under the port you want to configure, run the command “no Switchport” and try the IP command once again.

Download layer 3 switch IOS (Integrated services router) for GNS3:

You can download this IOS with this link:  IOS for EthernetSwitch