ips = interface.get('ips', [])
for ip in ips:
if_elem.add_instance('ip', {'address': ip.get('address'),
'netmask': ip.get('netmask'),
ips = interface.get('ips', [])
for ip in ips:
if_elem.add_instance('ip', {'address': ip.get('address'),
'netmask': ip.get('netmask'),