Returns a random address from within the given ip global
        https://pythonhosted.org/netaddr/api.html#ip-glob-ranges
            IPGLOB:GLOB

        %{IPGLOB:*.*.*.*} -> ''

def ipglob(self, *args):
        """Returns a random address from within the given ip global
        https://pythonhosted.org/netaddr/api.html#ip-glob-ranges
            IPGLOB:GLOB

        %{IPGLOB:*.*.*.*} -> ''
        """
        call_args = list(args)
        return self.random.choice(IPGlob(call_args.pop(0)))