@property<EOL><INDENT>def is_unspecified(self):<DEDENT>
return (self.network_address.is_unspecified and<EOL>self.broadcast_address.is_unspecified)<EOL>
Test if the address is unspecified.

        Returns:
            A boolean, True if this is the unspecified address as defined in
            RFC 2373 2.5.2.