lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     802.11bg  ESSID:"freewifi"  Nickname:"rtl8191SEVA1"
          Mode:Managed  Frequency=2.412 GHz  Access Point: 00:90:4B:08:3F:D4   
          Bit Rate=11 Mb/s   
          Retry:on   RTS thr:off   Fragment thr:off
          Encryption key: <hidden>
          Power Management:off
          Link Quality=72/100  Signal level=-67 dBm  Noise level=-106 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0