Callback to perform sanity checking for the plugin's specific
        parameters.

def check_arguments(cls, conf):
        """
        Callback to perform sanity checking for the plugin's specific
        parameters.

        """
        # Perform sanity checking on CIDR
        utils.ip_check(conf['fixed_cidr'], netmask_expected=True)

        # Perform sanity checking on host list
        for host in conf['fixed_hosts'].split(":"):
            utils.ip_check(host)