Currently it is impossible to define IP ranges to be excluded in reporting. You can use wildcards like 1.1.1.* but you can't use ranges like 1.1.1.[15-120] this is a big problem for us. Now you have to add all IP's separately and there is the limit of IP's after you cannot exclude any.
Also would be nice if you could exclude domain behind the IP's that would be good alternative for IP range exclusion.
I know that I could buy Adobe consulting to do VISTA rules, but hey, it's 2019, this kind of self-service should be possible and included in price of the tool.