lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     802.11bg  ESSID:"mfour-tomato"  Nickname:"rtl8191SEVA2"
          Mode:Managed  Frequency=2.437 GHz  Access Point: 00:18:F8:D2:4B:95   
          Bit Rate=12 Mb/s   
          Retry:on   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=54/100  Signal level=-76 dBm  Noise level=-97 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0