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？Becasue有多个条目,我猜这个Wifi有不同的加密选项.那里有什么选项可以显示？"WPA版本1","IEEE 802.11i/WPA2版本1","unkonw"是什么关于WEP？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