The virtual network configuration paramaters in the
heat template environment file define the virtual network that connects
the VM-Series firewall and the two Linux servers deployed by the
Network (VN Config)
The VM-Series firewall management interface
attaches to the network specified in this parameter. You should
restrict access to the firewall and isolate the management network. Additionally,
do not make the allowed network larger than necessary and never
configure the allowed source as 0.0.0.0/0.
left_vn or left_network
Name of the left virtual network.
right_vn or right_network
Name of the right virtual network.
Fully qualified domain name of the left virtual
Fully qualified domain name of the right virtual
Edit this value so route target configuration
matches that of your external gateway.