Bridge-less VM

I'm trying to create a free standing VM that doesn't connect to a bridge. This is supposedly do able according to the WIKI: https://libvirt.org/formatdomain.html#elementsNICSEthernet But with a config similar to: <interface type='ethernet'> <target dev='mytap1' managed='no'/> <model type='virtio'/> </interface> When starting the domain I get the error: error: internal error: process exited while connecting to monitor: 2020-01-16T18:08:04.788860Z qemu-system-x86_64: -netdev tap,id=hostnet0,vhost=on,vhostfd=26: could not open /dev/net/tun: Operation not permitted Checked permissions on /dev/net/tunand it's 666 If I just configure it as a "bridge" connection the domain starts. Then I can use brctl to remove it from the bridge to get what I want. That just proves it possible but with extra steps (Shout out to Rick and Morty) Thoughts?? Running Ubuntu 16.04.1 Kernel 4.15.0-74 libvirt 1.3.1-1ubuntu10.27 qemu 1:2.5+dfsg-5ubuntu10.41 Thanks, --> Rob