linux - iwlist 扫描输出的含义

Question

我对 iwlist 扫描的输出有疑问。例如我有以下结果。 IE有多个条目。 IE代表什么？因为有多个条目，我猜这个 Wifi 有不同的加密选项。那里可以显示所有选项？ "WPA Version 1","IEEE 802.11i/WPA2 Version 1","unkonw"WEP 是什么？还是EAP？这将如何显示？

      Cell 01 - Address: 00:1F:F3:02:04:81
                ESSID:"Apple Network"
                Mode:Master
                Channel:1
                Frequency:2.412 GHz (Channel 1)
                Quality=42/100  Signal level:-84 dBm  Noise level=-127 dBm
                Encryption key:on
                IE: WPA Version 1
                    Group Cipher : TKIP
                    Pairwise Ciphers (1) : TKIP
                    Authentication Suites (1) : PSK
                IE: IEEE 802.11i/WPA2 Version 1
                    Group Cipher : TKIP
                    Pairwise Ciphers (2) : CCMP TKIP
                    Authentication Suites (1) : PSK
                IE: Unknown: 2D1A2C0217FFFF000000000000000000000000000000000000000000

Answer 1

IE:信息元素

引用Management Frames ,

Management frames are quite flexible. Most of the data contained in the frame body uses fixed-length fields called fixed fields and variable-length fields called information elements. Information elements are blobs of data of varying size. Each data blob is tagged with a type number and a size, and it is understood that an information element of a certain type has its data field interpreted in a certain way. New information elements can be defined by newer revisions to the 802.11 specification;

IEEE 802.11i-2004是指定无线网络安全机制的标准。

Wi-Fi Protected Access (WPA)是安全协议(protocol)和安全认证程序。

抱歉，我找不到 WEP 和 EAP 的 iwlist 结果......

使用 iw 命令怎么样？ The n mode on “iwlist wlan0 scan”