Relaying apparatus for use in a network system

A relaying apparatus comprises a client terminal (100), many server terminals (140a, 140b) connected via a network to the client terminal, a DNS responding device (120) which accepts a DNS inquiry from the client terminal via a client-side DNS device (110), and one path load measuring device (130a, 130b) for each of the server terminals which measures a load in the communication path up to the client-side DNS device. The DNS responding device (120) distributes a work load by routing a service request from the client terminal (100) to any one of the server terminals (140a,140b) based on the measurement result (i.e. route load).