iwconfig
...
wlan0 IEEE 802.11g ESSID:off/any Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Bit Rate:144 Mb/s Tx-Power:20 dBm Sensitivity=0/3
RTS thr:off Fragment thr: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
ifconfig
...
wlan0 Link encap:Ethernet HWaddr 00:15:af:91:7f:da
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 Memory:f6000000-f6010000
sudo dhclient [variant 1]
There is already a pid file /var/run/dhclient.pid with pid 10555
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/eth0/00:40:d0:e5:f6:7b
Sending on LPF/eth0/00:40:d0:e5:f6:7b
Listening on LPF/wlan0/00:15:af:91:7f:da
Sending on LPF/wlan0/00:15:af:91:7f:da
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21
receive_packet failed on wlan0: Network is down
Terminated
sudo dhclient [variant 2]
There is already a pid file /var/run/dhclient.pid with pid 134519072
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/wlan0/00:15:af:91:7f:da
Sending on LPF/wlan0/00:15:af:91:7f:da
Listening on LPF/eth0/00:40:d0:e5:f6:7b
Sending on LPF/eth0/00:40:d0:e5:f6:7b
Sending on Socket/fallback
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 1
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
Here's some of the outputs of various commands:
sudo lspci -vv
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+ ,D1-,D2- ,D3hot+ ,D3cold- )
Status: D0 PME-Enable- DSel=0 DScale=0 PME+
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Queue=0/5 Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express Endpoint IRQ 0
Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <128ns, L1 <2us
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 0
Link: Latency L0s <512ns, L1 <64us
Link: ASPM Disabled RCB 128 bytes CommClk+ ExtSynch-
Link: Speed 2.5Gb/s, Width x1
...
02:00.0 Network controller: RaLink Unknown device 0781
Subsystem: RaLink Unknown device 2790
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=64K]
...
ndiswrapper -l
rt2860 : driver installed
device (1814:0781) present
sudo iwlist scan
ESSID: "NETGEAR"
Protocol: IEEE 802.11g
Mode: Managed
Frequency :2.462 GHz (Channel 11)
Quality: 100/100 Signal level:-27 dBm Noise level:-96 dBm
Encryptio n 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: bcn_int= 100
Extra: atim=0
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authenticati on Suites (1) : PSK
...
wlan0 Scan completed :
Cell 01 - Address: 00:18:4D:D5:1A:A1
iwconfig
Mode: Managed Frequency:2.412 GHz Access Point: Not-Associated
...
wlan0 IEEE 802.11g ESSID:off/any
Bit Rate:144 Mb/s Tx-Power:20 dBm Sensitivity=0/3
RTS thr:off Fragment thr: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
ifconfig
collisions: 0 txqueuelen:1000
Interrupt: 16 Memory: f6000000- f6010000
...
wlan0 Link encap:Ethernet HWaddr 00:15:af:91:7f:da
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
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
sudo dhclient [variant 1] dhclient. pid with pid 10555 www.isc. org/sw/ dhcp/ 00:40:d0: e5:f6:7b 00:40:d0: e5:f6:7b 00:15:af: 91:7f:da 00:15:af: 91:7f:da
There is already a pid file /var/run/
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://
Listening on LPF/eth0/
Sending on LPF/eth0/
Listening on LPF/wlan0/
Sending on LPF/wlan0/
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21
receive_packet failed on wlan0: Network is down
Terminated
sudo dhclient [variant 2] dhclient. pid with pid 134519072 www.isc. org/sw/ dhcp/ 00:15:af: 91:7f:da 00:15:af: 91:7f:da 00:40:d0: e5:f6:7b 00:40:d0: e5:f6:7b
There is already a pid file /var/run/
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://
Listening on LPF/wlan0/
Sending on LPF/wlan0/
Listening on LPF/eth0/
Sending on LPF/eth0/
Sending on Socket/fallback
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 1
No DHCPOFFERS received.
No working leases in persistent database - sleeping.