Methods and apparatus for operating a communication system comprising three or more communication transceivers. In illustrative embodiments, multiple different cyclic redundancy check (CRC) generation schemes are maintained. Each CRC generation scheme corresponds to a unique CRC residual value. A CRC value generated using one of the CRC generation schemes is placed in a data packet to be transmitted. The chosen CRC generation scheme reflects which one or more transceivers are intended recipients of the data packet. When a data packet is received by a transceiver, a CRC residual value is calculated based on the CRC value contained in the received data packet. The calculated CRC residual value is compared against a list of one or more valid CRC residual values for that particular transceiver. If the calculated CRC value matches one of the listed valid CRC residual values, the data packet is accepted, otherwise it is rejected.