Presentation of the EGEE-JRA4 activity in the \"Grid Networking\" Workshop GNEW2004. This workshop held at CERN on the 15-16 of March reviewed different project and initiatives related to the Grid and the network technologies. All the talks can be found at:
http://datatag.web.cern.ch/datatag/gnew2004/program.html
and the presentation of EGEE-JRA4 at:
https://edms.cern.ch/document/456519/1
