There are several software options available for setting up a virtual network. One popular choice is Microsoft Azure Virtual Machines, which is best suited for Windows Server environments. Another option is VMware NSX, which is known for its zero-trust security features. For network automation, Check Point Virtual Systems is a top pick, while Cisco Enterprise NFV is ideal for those who already have a Cisco infrastructure in place. For open-source virtualization management, oVirt is a great choice. Additionally, VMware Workstation can be used to create a virtual router by configuring a VM to act as a router. Other network configuration management tools, such as SolarWinds Network Configuration Manager, are also available for managing virtual networks. To create a virtual network, one can use the Azure CLI to create a virtual network and subnets. It is also possible to emulate a network using VirtualBox by configuring network adapters on virtual machines. Overall, the best software option for setting up a virtual network will depend on specific needs and requirements, such as the operating system being used, the level of security needed, and the desired level of automation.