tag:
priority: 300
type: txt
help: Set loopback interface name
comp_help: Enter looback interface name (lo)
syntax:expression: exec \
   "/opt/vyatta/sbin/vyatta-interfaces.pl --dev=$VAR(@) --check=loopback"
allowed: /opt/vyatta/sbin/vyatta-interfaces.pl --show=loopback
create: sudo ip link set $VAR(@) up