surendra malampati

Hai this is surendra,currently i am working project on zigbee module.My objective is i need to cover the more distance for that i chosen zigbee mesh topology then how can i set the addressing for all the nodes? previously i have done communicating only two modules(zigbees) now i have been trying for communicating more nodes.Please tell me the procedure how can do this?In this project i am using TARANG-F4 modules.