MikroTik RouterOS is the stand-alone operating system of MikroTik RouterBOARD hardware. It can also be installed on a PC and will turn it into a router with all the necessary features – routing, firewall, bandwidth, management, wireless access point, backhaul link, hotspot, gateway, VPN server and more.
RouterOS x86 installed on Qemu and VirtualBox disks is not licensed, you have 24 hours in total to run these images.
login/pass: admin / password is not set
1. RouterOS x86 6.15
Qemu
https://drive.google.com/file/d/0B6L2h6R5UKMhQUcxMFl2a1pZZGs/edit?usp=sharing
http://sourceforge.net/projects/gns-3/files/Qemu%20Appliances/routeros-6.15-qemu.zip/download
http://www.4shared.com/zip/HG7nubJlba/routeros-615-qemu.html
VirtualBox
https://drive.google.com/file/d/0B6L2h6R5UKMhODYyNm0tWnFjXzA/edit?usp=sharingv
http://sourceforge.net/projects/gns-3/files/VirtualBox%20Appliances/routeros-6.15-vbox.zip/download
http://www.4shared.com/zip/qPN2tmD7ba/routeros-615-vbox.html