SIOCSIFFLAGS: Operation not permitted您好，我对这个东西很陌生。当我尝试 ifconfig wlan0 up 时出现错误。
以下是我的终端的前后情况。
root@bt:~# iwconfig
lo no wireless extensions.
wlan0 unassociated Nickname:"rtl_wifi"
Mode:Auto Access Point: Not-Associated Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
root@bt:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0c:29:4b:5c:be
inet addr:192.168.196.130 Bcast:192.168.196.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe4b:5cbe/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:124 errors:0 dropped:0 overruns:0 frame:0
TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11915 (11.9 KB) TX bytes:3200 (3.2 KB)
Interrupt:19 Base address:0x2000
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:16436 Metric:1
RX packets:15 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:953 (953.0 B) TX bytes:953 (953.0 B)
wlan0 Link encap:Ethernet HWaddr 00:02:72:3b:fe:45
UP BROADCAST RUNNING 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)
root@bt:~# iwlist scan
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:0D:97:07:E5:6E
ESSID:"<hidden>"
Protocol:IEEE 802.11bg
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Signal level=42/100
Cell 02 - Address: C0:3F:0E:94:00:DE
ESSID:"Kenpoaksds"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD0E0050F204104A0001101044000102
Signal level=43/100
Cell 03 - Address: 28:28:5D:20:78:39
ESSID:"Fuji"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.452 GHz (Channel 9)
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:wpa_ie=dd1c0050f20101000050f20202000050f2040050f20201000050f2020c00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac020c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F204104A00011010440001021049000600372A000120
Signal level=47/100
eth0 Interface doesn't support scanning.
root@bt:~# dmesg | tail
[ 19.394752] acpiphp: Slot [62] registered
[ 19.394846] acpiphp: Slot [63] registered
[ 22.658036] eth0: no IPv6 routers present
[ 23.280799] r8712u: CustomerID = 0x0000
[ 23.280807] r8712u: MAC Address from efuse = 00:02:72:3b:fe:45
[ 23.280812] r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 23.281497] usbcore: registered new interface driver r8712u
[ 25.325874] r8712u: 1 RCR=0x153f00e
[ 25.330997] r8712u: 2 RCR=0x553f00e
[ 25.471834] ADDRCONF(NETDEV_UP): wlan0: link is not ready
root@bt:~# cd /usr/src/linux && cat .config | grep =i kill
grep: kill: No such file or directory
root@bt:/usr/src/linux# ifconfig wlan0 down
root@bt:/usr/src/linux# macchanger -m 00:11:22:33:44:55 wlan0
Current MAC: 00:02:72:3b:fe:45 (Cc&c Technologies, Inc.)
Faked MAC: 00:11:22:33:44:55 (Cimsys Inc)
root@bt:/usr/src/linux# ifconfig wlan0 up
SIOCSIFFLAGS: Operation not permitted
root@bt:/usr/src/linux# iwconfig
lo no wireless extensions.
wlan0 unassociated Nickname:"rtl_wifi"
Mode:Auto Access Point: Not-Associated Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
root@bt:/usr/src/linux# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0c:29:4b:5c:be
inet addr:192.168.196.130 Bcast:192.168.196.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe4b:5cbe/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:254 errors:0 dropped:0 overruns:0 frame:0
TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:23547 (23.5 KB) TX bytes:3242 (3.2 KB)
Interrupt:19 Base address:0x2000
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:16436 Metric:1
RX packets:23 errors:0 dropped:0 overruns:0 frame:0
TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1521 (1.5 KB) TX bytes:1521 (1.5 KB)
root@bt:/usr/src/linux# iwlist scan
lo Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Network is down
eth0 Interface doesn't support scanning.
root@bt:/usr/src/linux# dmesg | tail
[ 19.394752] acpiphp: Slot [62] registered
[ 19.394846] acpiphp: Slot [63] registered
[ 22.658036] eth0: no IPv6 routers present
[ 23.280799] r8712u: CustomerID = 0x0000
[ 23.280807] r8712u: MAC Address from efuse = 00:02:72:3b:fe:45
[ 23.280812] r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 23.281497] usbcore: registered new interface driver r8712u
[ 25.325874] r8712u: 1 RCR=0x153f00e
[ 25.330997] r8712u: 2 RCR=0x553f00e
[ 25.471834] ADDRCONF(NETDEV_UP): wlan0: link is not ready
root@bt:/usr/src/linux# cd /usr/src/linux && cat .config | grep =i kill
grep: kill: No such file or directory
root@bt:/usr/src/linux#