ABOUT THE HANDS-ON LABS The purpose of this workbook is to guide you through configuring and testing common network topologies using Cisco Virtual Internet Routing Lab (VIRL). Cisco VIRL is a software tool to build and run network simulations without the need for physical hardware.The hands-on labs in this guide work you through basic STP, Trunking, NAT, EIGRP/OSPF dynamic routing protocols to advanced ASA with multiple security zones, IPSec VPN,...