+ @staticmethod
+ def get_interface_ip4(node, iface_key):
+ """Get IP4 address for the interface.
+
+ :param node: Node to get interface mac on.
+ :param iface_key: Interface key from topology file.
+ :type node: dict
+ :type iface_key: str
+ :returns: Return IP4 or None if not found.
+ """
+ try:
+ return node['interfaces'][iface_key].get('ip4_address', None)
+ except KeyError:
+ return None
+