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Old 09-27-2011, 09:24 AM   #1
Torline
LQ Newbie
 
Registered: Jun 2011
Location: Russian Federation, Yekaterinburg
Posts: 7

Rep: Reputation: Disabled
WiFi issue and iwlist scan


Hi all. Help me explain please, I'm kind of newbie in wifi nets. There are two wifi adapters at short distance. Desktop is:
Code:
ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 1c:7e:e5:fc:74:57  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::1e7e:e5ff:fefc:7457/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1216 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:3848 (3.8 KB)
iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"MyNetwork"  
          Mode:Ad-Hoc  Frequency:2.412 GHz  Cell: 00:60:1D:01:23:45   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:1234-5678-90
          Power Management:off
Laptop:
Code:
ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 68:a3:c4:21:29:84  
          inet addr:192.168.1.4  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::6aa3:c4ff:fe21:2984/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1549 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:11830 (11.8 KB)
iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"MyNetwork"  
          Mode:Ad-Hoc  Frequency:2.412 GHz  Cell: D2:FD:C0:69:50:34   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:1234-5678-90
          Power Management:on
Checking visibility MyNetwork on Desktop:
Code:
iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: 00:60:1D:01:23:45
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70  Signal level=0 dBm  
                    Encryption key:on
                    ESSID:"MyNetwork"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Ad-Hoc
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 12980ms ago
                    IE: Unknown: 000473313030
                    IE: Unknown: 010882040B160C121824
                    IE: Unknown: 030101
                    IE: Unknown: 06020000
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD070050F202000100
and Laptop:
Code:
iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: D2:FD:C0:69:50:34
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70  Signal level=0 dBm  
                    Encryption key:on
                    ESSID:"MyNetwork"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Ad-Hoc
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 282892ms ago
                    IE: Unknown: 000473313030
                    IE: Unknown: 010882040B160C121824
                    IE: Unknown: 030101
                    IE: Unknown: 06020000
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD070050F202000100
          Cell 02 - Address: 00:18:E7:FE:E3:1A
                    Channel:5
                    Frequency:2.432 GHz (Channel 5)
                    Quality=47/70  Signal level=-63 dBm  
                    Encryption key:on
                    ESSID:"DLinkYJK"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000001733b52add
                    Extra: Last beacon: 632ms ago
                    IE: Unknown: 0008444C696E6B544B53
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030105
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101820003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: Unknown: DD0A00037F04010000004000
                    IE: Unknown: DD9E0050F204104A0001101044000102103B00010310470010000000000000100000000018E7FEE31A10210006442D4C696E6B1023000D442D4C696E6B20526F75746572102400074449522D363135104200046E6F6E651054000800060050F204000110110016442D4C696E6B2053797374656D73204449522D363135100800020086103C000103104900140024E26002000101600000020001600100020001
                    IE: Unknown: DD050050F20500
Cell 01 is Laptop; Cell 02 is some unknown network, never mind. It seems that connection is ok, but no packets was received nor on Desktop nor on Laptop. Pinging on both sides says that destination is unreacheble... Same behavior when using NetworkManager. Changing channel have no results.
So, if both adapters in adhoc mode, on same channel and with same ssid and key, questions are: why adapters can't see each other and how to be sure that connection between them was successfully established?
Thanks in advance.
 
Old 09-28-2011, 08:33 AM   #2
Torline
LQ Newbie
 
Registered: Jun 2011
Location: Russian Federation, Yekaterinburg
Posts: 7

Original Poster
Rep: Reputation: Disabled
Using proprietary RaLink driver on desktop DLinkDWA525 solved problem...
 
  


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