lo        no wireless extensions.

eth0      no wireless extensions.

vboxnet0  no wireless extensions.

wlan1     IEEE 802.11bgn  ESSID:"linux4eva"  Nickname:"rtl_wifi"
          Mode:Managed  Frequency:2.442 GHz  Access Point: 94:44:52:57:18:86   
          Bit Rate:300 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=100/100  Signal level=92/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0