>Can live555 RTSP work on UDP? >I refer to RTSPServer and RTSPClient on UDP and not TCP! No. Although RTSP-over-UDP was men tioned briefly in the original RTSP 1.0 specification, noone (including us) ever implemented it, and it will not be part of RTSP 2.0. -- Ross Finlayson Live Networks, Inc. http://www.live555.com/