Excluding IP Accounting for a specific IP Address

Hi Xperts,

I am using Mikrotik with Freeradius , our users are connecting with pppoe and hotspot. we would like to exclude ip accounting for a specific ip address like our video streaming or ftp server ip.

is there any solution for this either from Mikrotik or from Freeradius. currently we are getting only total data usage on radius but not getting src-ipaddress/dst-ipaddress data usage in the radius logs

kindly suggest me your views and thoughts.

Regards,
vvsnrkr