vRtrPimNgRPSetInetGrpMask 1.3.6.1.4.1.6527.3.1.2.50.1.36.1.4

The value of vRtrPimNgRPSetInetGrpMask indicates the mask which is combined with vRtrPimNgRPSetInetGrpAddr to get the range of multicast group addresses for which vRtrPimNgRPSetInetCRPAddress is the candidate RP.