network-simple-single-bridge-with-nat

The template to use for configuring the NAT Add Bridge network.

The name of the template to utilize to configure the single flat bridge setup, with outbound NAT translation for the VMS.

The default is network-simple-single-bridge-with-nat

This will be written to /etc/network/interfaces.d/$BRIDGE where BRIDGE is defined by the Param proxmox/vm-external-bridge.