{% set ip4hex = item.value.ipv4_network | ipaddr('net') | ipaddr(magic) | ipaddr('address') | ip4_hex() -%}
{% set mac = '0212' + ip4hex -%}
#
# {{ ansible_managed }}
#
allow-hotplug {{ item.key }}igVPN
iface {{ item.key }}igVPN inet manual
	pre-up		/sbin/ip link set address {{ mac | hwaddr('linux') }} dev $IFACE
	post-up		/sbin/ip link set dev $IFACE up
	post-up		/sbin/ip link set dev $IFACE master {{ item.key }}BAT