lo        no wireless extensions.

eth0_rename  no wireless extensions.

eth1      no wireless extensions.

pan0      no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"ZyXEL_4105rov"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 40:4A:03:A8:AC:21   
          Bit Rate=36 Mb/s   Tx-Power=0 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=37/70  Signal level=-73 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0