---
title: BLE Sniffing
id: "en:mobile:xapp:03_01_scenario_blesniffing.adoc"
site: en
component: mobile
module: xapp
lang: en
url: "https://help.rtlscloud.io/en/mobile/xapp/03_01_scenario_blesniffing.html"
source_repo: "https://github.com/iot-invent/xapp.git@main"
source_path: docs/en/modules/xapp/pages/03_01_scenario_blesniffing.adoc
---

# BLE Sniffing

After a successful connection with the tag, _BLE Sniffing_ must be selected.

![Diagram](_images/xapp_configuration_tag.png)

The following settings must be configured for a mobile tag with BLE sniffing.

![Diagram](_images/xapp_configuration_ble_sniffing.png) ![Diagram](_images/xapp_configuration_ble_sniffing2.png)

| Characteristic | Value |
| --- | --- |
| Is Active | On |
| Gateway Whitelist active | On |
| Gateway Whitelist Name | Prefix of the mobile BLE only tags |
| Gateway Whitelist Name Prefix | XBC- (Prefix of the stationary BLE LTE tags |