3.2.5.12.2 Sending Zero NACK
The client MUST construct a NACK packet (section 2.2.18) and set the packet fields as follows:
ClientId: MUST be set to ClientId (section 3.2.1.3).
HiODATASeqNo: MUST be set to HiODATASeqNo (section 3.2.1.3).
LossRate: MUST be set to LossRate (section 3.2.1.3).
RangeCount: MUST be set to zero.
RangeList: MUST set to an empty list.
The client MUST send the NACK packet to the Server Address (section 3.2.1.1).