config info 'ddinfo'
        option dmbind 'none'
        option wanbind 'none'
        option sefsvr 'n-device-entry-omada.tplinkcloud.com'
        option cachedsvr 'n-aps1-device-omada.tplinkcloud.com'
        option sefsvrip 'none'
        option cachedsvrip 'none'
