蓝牙 ssid是什么
Service Set Identifier or SSID is a technical term which is used to define wireless network name. As today wireless networks are very popular and dense. Almost every home has at least one wireless network which will be dense in cities. SSID is used to name a wireless network name which can be changed easily from the wireless device name which is generally a wireless router or ADSL modem.
Service Set Identifier或SSID是一个技术术语，用于定义无线网络名称。 当今，无线网络非常流行且密集。 几乎每个家庭都有至少一个无线网络，该网络将在城市中密集。 SSID用于命名无线网络名称，该名称可以从通常是无线路由器或ADSL调制解调器的无线设备名称轻松更改。
SSID属性 (SSID Properties)
SSID is defined in IEEE 802.11 wireless local area network standard. As a standard SSID has some properties which should be implemented by wireless devices. SSID can contain a maximum of 32 characters which will be used to name wireless networks. This is very important to connect the correct wireless network. Each packet sent over a wireless network will include the SSID in order to ensure that the data sent to the correct or targeted wireless network. If the SSID didn’t exist the wireless medium which is air would be chaotic and unpredictable to transmit data to the correct destination.
SSID在IEEE 802.11无线局域网标准中定义。 作为标准，SSID具有一些应由无线设备实现的属性。 SSID最多可以包含32个字符，用于命名无线网络。 这对于连接正确的无线网络非常重要。 通过无线网络发送的每个数据包都将包含SSID，以确保将数据发送到正确的或目标的无线网络。 如果不存在SSID，则空中的无线介质将变得混乱且不可预测，无法将数据传输到正确的目的地。
默认SSID (Default SSID)
Most of the wireless devices like wireless routers, ADSL modems set default SSID. These SSID can be shown from the management GUI which is generally a web application of the modem. But also the default SSID information is printed physically on the modem. The printed SSID information generally put under the device like below.
大多数无线设备(如无线路由器，ADSL调制解调器)都设置默认的SSID。 可以从管理GUI(通常是调制解调器的Web应用程序)中显示这些SSID。 而且默认的SSID信息也会物理地打印在调制解调器上。 打印的SSID信息通常如下放置在设备下方。
列出具有SSID的无线网络 (List Wireless Networks with SSID)
For Windows 10 operating system wireless networks and SSID’s can be listed by clicking to the wireless icon in the task manager. But keep in mind that in order to search and list SSID’s the wireless interface should be enabled and running properly. Below we can see that there are different SSIDs with different wireless signals. We can see that some SSID’s are used similar names but there are some little differences.
对于Windows 10操作系统，可以通过单击任务管理器中的无线图标列出无线网络和SSID。 但是请记住，为了搜索和列出SSID，应启用无线接口并使其正常运行。 在下面我们可以看到存在具有不同无线信号的不同SSID。 我们可以看到，某些SSID的名称相似，但差异不大。
更改SSID(Change SSID)
Generally changing the SSID is a good step for security and preventing misunderstanding. SSID can be changed via the web application of the wireless device.
通常，更改SSID是确保安全和防止误解的一个好步骤。 可以通过无线设备的Web应用程序更改SSID。
隐藏的SSID (Hidden SSID)
SSID is used to define network and visible for all wireless clients by default. SSID is just a name and can be hidden for different purposes like security. The wireless network with a hidden SSID will not be shown in the wireless network list by default. But there are different ways and applications to list hidden SSID’s. So hiding the SSID is not a real security solution. Even hidden SSID can create problems with the connection. In order to connect hidden SSID follow Network & Internet Settings ->Network and Sharing Center -> Set up a new connection or network -> Manually connect to a wireless network . We will see the following screen where we will put some information like network name, security type, security key, and then check the checkboxes. The network name is the SSID of the wireless network we want to connect.
默认情况下，SSID用于定义网络，并且对所有无线客户端可见。 SSID只是一个名称，可以出于安全性等不同目的而被隐藏。 默认情况下，带有隐藏SSID的无线网络不会显示在无线网络列表中。 但是，列出隐藏的SSID的方法和应用程序不同。 因此，隐藏SSID并不是真正的安全解决方案。 甚至隐藏的SSID也会造成连接问题。 为了连接隐藏的SSID，请遵循Network & Internet Settings -> Network and Sharing Center -> Set up a new connection or network -> Manually connect to a wireless network 。 我们将看到以下屏幕，其中将放置一些信息，例如网络名称，安全性类型，安全**，然后选中复选框。 网络名称是我们要连接的无线网络的SSID。
WPA2和SSID关系 (WPA2 and SSID Relation)
Wireless networks are secured with different protocols. WPA2 is one of the most recent protocol to secure and encrypt wireless. WPA2 key is used to authenticate the new clients to the given wireless network which is defined with SSID. WPA2 key is an alpha-numeric password which can be 32 characters at most.
无线网络使用不同的协议保护。 WPA2是用于保护和加密无线的最新协议之一。 WPA2**用于将新客户端认证到使用SSID定义的给定无线网络。 WPA2**是一个字母数字密码，最多可以包含32个字符。
多个SSID (Multiple SSID)
Modern wireless devices like wireless routers, ADSL modems implement multiple wireless standards. Generally, 2.5 and 5.0 GHz are used to broadcast wireless networks. The wireless devices can broadcast different SSID for 2.5 and 5.0 GHz. Alternatively, for security reasons, multiple SSID can be broadcasted for Guest, External, or Internal wireless networks.
诸如无线路由器，ADSL调制解调器之类的现代无线设备实现了多种无线标准。 通常，2.5 GHz和5.0 GHz用于广播无线网络。 无线设备可以广播2.5 GHz和5.0 GHz的不同SSID。 或者，出于安全原因，可以为来宾，外部或内部无线网络广播多个SSID。
翻译自: https://www.poftut.com/what-is-ssid-service-set-identifier/
蓝牙 ssid是什么