Actually, it is best to use a network node rather than a digipeater. With a digipeater the error-check and any retransmission to correct errors occurs from end-user to end-user, through the digipeater. With a network node (which uses the same hardware, but different firmware, as a digipeater) there is a connection between each station and the network node. If an error occurs, the retransmission only occurs over the link that caused it rather than end-to-end over the whole network.