Ipfilter

IP Filter (Important)

   * In notepad type these two lines:
         o 1.1.1.1 - 172.17.255.255
         o 172.19.0.0 - 255.255.255.255 

       the above only allows access to 172.18.0.0/16

   * Save the file as ipfilter.dat 

   * Then open the file, "%AppData%\uTorrent". (Press windowskey+R, type %AppData%\uTorrent)
         o Paste the ipfilter.dat you just created in this file. 

   * In uTorrent press Ctr+P.
         o In the advanced tab, make sure that ipfilter.enable is true.
         o Apply > OK > Close 

   * In the peer tab, right click on an IP adress > select Reload IPfilter. 

Ok you have now blocked all the ip adresses ranging from 1.1.1.1 - 172.15.255.255 and 172.32.0.0 - 255.255.255.255.

You may modify this range as you please by editing the ipfilter.dat file.

To check if you are blocking the IP's, in the Logger tab you should see the following;

Loaded ipfilter.dat (2 entries)