lo        no wireless extensions.

eth0      no wireless extensions.

pan0      no wireless extensions.

eth1      IEEE 802.11g  ESSID:"arnold"  
          Mode:Managed  Frequency:2.417 GHz  Access Point: 00:18:F8:E5:EA:62   
          Bit Rate:54 Mb/s   Tx-Power=20 dBm   Sensitivity=8/0  
          Retry limit:7   RTS thr:off   Fragment thr:off
          Encryption key: <hidden>
          Power Management:off
          Link Quality=79/100  Signal level=-50 dBm  Noise level=-85 dBm
          Rx invalid nwid:0  Rx invalid crypt:4  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:6