wi-fi traffic > vpn traffic

      ppp0               wlan0
 KB/s in  KB/s out   KB/s in  KB/s out
   89.17    178.44     98.78    196.41
  129.06    184.77    140.36    204.86
   97.40     77.50    105.28     92.74
  146.43    181.19    160.45    202.97
   74.56    171.48     83.67    189.47
  145.85    136.68    158.57    158.80
  220.52    154.31    249.87    182.94
   47.26    174.74     40.30    189.90
  129.08    133.91    144.64    150.75
  106.49    159.28    112.92    174.69
  146.90    148.99    161.81    170.98
   50.24    214.07     55.54    227.90
  152.61    141.71    167.61    165.40
   65.44    124.30     69.04    137.82
   74.22    217.40     86.38    239.47
  131.76    215.31    141.78    236.54
   72.34    141.69     79.42    156.56
   42.70    138.51     49.40    154.07
  123.96    243.01    137.83    257.48
   93.60    157.29    103.62    170.85
   31.68    173.37     39.00    199.77
  147.00    176.89    159.99    198.07