Peer-to-peer networks are beginning to form the infrastructure of future applications. One of the problems with non structured peer-to-peer networks is their scalability limitation. These networks can?t contain a large number of nodes because of the large amount of traffic that they have to handle. HyperCup is a structured overlay network that solves the scalability problem for message broadcasts. This overlay broadcasts search queries throughout the entire network and all nodes receive broadcasted messages. In this paper we introduce Semantic HyperCup, an extension of HyperCup which uses semantic data to route messages and reduce overlay network traffic through search queries.