我可以设置 AP，但尽管明确设置了监视器接口和 AP 的通道，AP 频率还是会定期变化。
我的设置：
- 操作系统：Kali Linux 1.0（从 U 盘启动）
- 外接网络适配器：Alfa AWUS036NH（芯片组 Ralink RT2870/3070，驱动程序：rt2800usb）
- 板载网络适配器：Atheros（芯片组 AR9485，驱动程序：ath9k）
我想要实现的目标：
- 创建一个在 Alfa 适配器上的通道 6 上运行的 AP
我做了什么：
root@kali:~# ifconfig
eth0 Link encap:Ethernet HWaddr dc:0e:a1:28:8f:fc
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:480 (480.0 B) TX bytes:480 (480.0 B)
wlan0 Link encap:Ethernet HWaddr 9c:b7:0d:04:d2:f5
inet addr:192.168.2.140 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::9eb7:dff:fe04:d2f5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:105 errors:0 dropped:0 overruns:0 frame:0
TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11692 (11.4 KiB) TX bytes:2834 (2.7 KiB)
wlan3 Link encap:Ethernet HWaddr 00:c0:ca:59:23:d0
inet addr:192.168.2.223 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::2c0:caff:fe59:23d0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:21 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1572 (1.5 KiB) TX bytes:1300 (1.2 KiB)
root@kali:~# iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan3 IEEE 802.11bgn ESSID:"SomeNetwork"
Mode:Managed Frequency:2.437 GHz Access Point: 0A:60:6E:EA:96:31
Bit Rate=13 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=70/70 Signal level=-27 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:2 Missed beacon:0
wlan0 IEEE 802.11bgn ESSID:"SomeNetwork"
Mode:Managed Frequency:2.437 GHz Access Point: 0A:60:6E:EA:96:31
Bit Rate=1 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-39 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2 Invalid misc:25 Missed beacon:0
root@kali:~# ifconfig wlan3 down
root@kali:~# ifconfig
eth0 Link encap:Ethernet HWaddr dc:0e:a1:28:8f:fc
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:480 (480.0 B) TX bytes:480 (480.0 B)
wlan0 Link encap:Ethernet HWaddr 9c:b7:0d:04:d2:f5
inet addr:192.168.2.140 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::9eb7:dff:fe04:d2f5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:125 errors:0 dropped:0 overruns:0 frame:0
TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:15214 (14.8 KiB) TX bytes:2834 (2.7 KiB)
root@kali:~# iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan3 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
wlan0 IEEE 802.11bgn ESSID:"SomeNetwork"
Mode:Managed Frequency:2.437 GHz Access Point: 0A:60:6E:EA:96:31
Bit Rate=1 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-38 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2 Invalid misc:25 Missed beacon:0
root@kali:~# airmon-ng check kill
Found 4 processes that could cause trouble.
If airodump-ng, aireplay-ng or airtun-ng stops working after
a short period of time, you may want to kill (some of) them!
-e
PID Name
3512 NetworkManager
3620 wpa_supplicant
3849 dhclient
4263 dhclient
Process with PID 4263 (dhclient) is running on interface wlan3
Process with PID 3849 (dhclient) is running on interface wlan0
Killing all those processes...
root@kali:~# airmon-ng check kill
root@kali:~# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:720 (720.0 B) TX bytes:720 (720.0 B)
root@kali:~# iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan3 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
root@kali:~# iwconfig wlan3 channel 6
root@kali:~# airmon-ng start wlan3 6
Interface Chipset Driver
wlan3 Ralink RT2870/3070 rt2800usb - [phy1]
(monitor mode enabled on mon0)
wlan0 Atheros AR9485 ath9k - [phy0]
root@kali:~# airbase-ng -c 6 -e FreeWiFi mon0
15:04:22 Created tap interface at0
15:04:22 Trying to set MTU on at0 to 1500
15:04:22 Trying to set MTU on mon0 to 1800
15:04:22 Access Point with BSSID 00:C0:CA:59:23:D0 started.
在另一个终端窗口中，我在 mon0 上运行 airodum-ng，可以看到会发生频道跳变（CH 值 x 会不断变化）：
BSSID PWR Beacons #Data, #/s CH MB ENC CIPHER AUTH ESSID
00:C0:CA:59:23:D0 0 2969 0 0 x 54 OPN FreeWiFi
我没有设置 at0 接口，也没有运行 dhcp 服务，但我相信现阶段这并不重要。
在另一台 Android 设备上，我一直在运行 WiFi 分析器应用程序，该应用程序确认我的恶意 AP“FreeWiFi”确实进行了频道跳跃。
问题：
1）尽管我将 wlan3、mon0 和 AP 的通道设置为 6，为什么还是会发生通道跳变？
2）如何让我的AP工作在固定信道上？
如果需要任何其他信息来分析此行为，请告诉我。