- topology[key]["nic-"+key2]['ip-addr'] = re.split('\\/', \
- topology[key]["nic-"+key2]['ip-address'])[0]
+ if topology[key]["nic-"+key2]['ip-address'] is not None:
+ topology[key]["nic-"+key2]['ip-addr'] = re.split('\\/', \
+ topology[key]["nic-"+key2]['ip-address'])[0]