lo        no wireless extensions.

eth0      no wireless extensions.

pan0      no wireless extensions.

eth1      IEEE 802.11g  ESSID:"jyu-guest"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1A:30:2C:4C:70   
          Bit Rate:54 Mb/s   Tx-Power=20 dBm   Sensitivity=8/0  
          Retry limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=82/100  Signal level=-48 dBm  Noise level=-84 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0