tunctl tunctl is used to set up and maintain persistent TUN/TAP network interfaces, enabling user applications to simulate network traffic. Such interfaces is useful for VPN software, virtualization, emulation, simulation, and a number of other applications. -t _interface _Specifies the desired interface name. **-b **Brief output, prints just the interface name -d _interfacename _Delete the specified interfacename (set it to non-persistent) -t _interface _Specifies the desired interface name. -u _user