是否可以将 IE 字段附加到我的 WiFi 热点,以便它出现在iwlist
其他机器扫描它的输出中?
例子:
我选择
1234567891011121314151617181920
作为我的 wifi 热点的附加字段(MAC 地址11:22:33:44:55:66
)用户使用命令扫描我的 wifi 热点
iwlist wlan0 scan
,应该给出输出:wlan0 Scan completed : Cell 01 - Address: 11:22:33:44:55:66 [...] IE: Unknown 1234567891011121314151617181920 [...]
答案1
IE 代表信息元素。它们作为信标帧的一部分传输,并携带各种信息,例如 SSID、支持的速率等。
Information element Element ID Length (in octets)
---------------------------------------------------------------------------
SSID (see 7.3.2.1) 0 2 to 34
Supported rates (see 7.3.2.2) 1 3 to 10
FH Parameter Set (see 7.3.2.3) 2 7
DS Parameter Set (see 7.3.2.4) 3 3
CF Parameter Set (see 7.3.2.5) 4 8
TIM (see 7.3.2.6) 5 6 to 256
IBSS Parameter Set (see 7.3.2.7) 6 4
Country (see 7.3.2.9) 7 8 to 256
Hopping Pattern Parameters (see 7.3.2.10) 8 4
Hopping Pattern Table (see 7.3.2.11) 9 6 to 256
Request (see 7.3.2.12) 10 2 to 256
BSS Load (see 7.3.2.28) 11 7
EDCA Parameter Set (see 7.3.2.29) 12 20
TSPEC (see 7.3.2.30) 13 57
TCLAS (see 7.3.2.31) 14 2 to 257
Schedule (see 7.3.2.34) 15 16
Challenge text (see 7.3.2.8) 16 3 to 255
Reserved 17–31
Power Constraint (see 7.3.2.15) 32 3
Power Capability (see 7.3.2.16) 33 4
TPC Request (see 7.3.2.17) 34 2
TPC Report (see 7.3.2.18) 35 4
Supported Channels (see 7.3.2.19) 36 4 to 256
Channel Switch Announcement (see 7.3.2.20) 37 5
Measurement Request (see 7.3.2.21) 38 5 to 16
Measurement Report (see 7.3.2.22) 39 5 to 24
Quiet (see 7.3.2.23) 40 8
IBSS DFS (see 7.3.2.24) 41 10 to 255
ERP Information (see 7.3.2.13) 42 3
TS Delay (see 7.3.2.32) 43 6
TCLAS Processing (see 7.3.2.33) 44 3
Reserved 45
QoS Capability (see 7.3.2.35) 46 3
Reserved 47
RSN (see 7.3.2.25) 48 36 to 256
Reserved 49
Extended Supported Rates (see 7.3.2.14) 50 3 to 257
Reserved 51–126
Extended Capabilities 127 2 to 257
Reserved 128–220
Vendor Specific (see 7.3.2.26) 221 3 to 257
Reserved 222–255
其中一些信息元素是特定于供应商的,这意味着它们可能会被其他供应商忽略。保留意味着它将来可能具有标准含义,实际上其中一些已经具有。 (我正在查看旧标准。)您可以在中配置它们主机配置文件
# Additional vendor specific elements for Beacon and Probe Response frames
# This parameter can be used to add additional vendor specific element(s) into
# the end of the Beacon and Probe Response frames. The format for these
# element(s) is a hexdump of the raw information elements (id+len+payload for
# one or more elements)
vendor_elements=dd0411223301
十六进制数据的结构如下:
Element ID 应为 dd,OUI 是由 分配的 3 字节数字IEEE,但好消息是 iwlist 将所有这些都显示为未知,除了 WPA (0050f2) 和 WPA2 (000fac)。