lo no wireless extensions. eth0 no wireless extensions. vboxnet0 no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"wlan-fb-wirtschaft" Mode:Managed Frequency:2.412 GHz Access Point: 00:1A:1E:C1:20:A0 Bit Rate=54 Mb/s Tx-Power=19 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=59/70 Signal level=-51 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:21 Invalid misc:206 Missed beacon:0