lo        no wireless extensions.

eth0      no wireless extensions.

wwan0     no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:"Ubuntu"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:22:90:50:1A:50   
          Bit Rate=54 Mb/s   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=57/70  Signal level=-53 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:25   Missed beacon:0