zeth@zeth-t420:~$ iwconfig 
eth0      no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:"R2D2v2"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 90:EF:68:30:35:1C   
          Bit Rate=135 Mb/s   Tx-Power=15 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=55/70  Signal level=-55 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:17   Missed beacon:0

lo        no wireless extensions.