- 學位論文
The Research and Implementation of NAT traversal for RTSP
The Research and Implementation of NAT traversal for RTSP
摘要
Networks are widely used and carrier backbone networks have been upgraded. The increase in speed has led to more internet users. Nowadays IP Camera is one of the popular “Internet of Things”. Most of the IP cameras use Real Time Streaming Protocol (RTSP) due to the fact that RTSP complies with one-way audio/ video communication and streaming condition. The present study provides an improved RTSP protocol. Concepts and components similar to the SIP proxy server are introduced into conventional RTSP architecture. RTSP proxy server not only can assist RTSP media server under NAT firewall in positioning location and ensure that it can keep the RTSP channel connection but also provide the service about NAT port prediction. Furthermore, a new method about TCP traversal through NAT is applied in the improved RTSP in order to solve the peer to peer problem when the client and RTSP media server are both under NAT.
並列摘要
Networks are widely used and carrier backbone networks have been upgraded. The increase in speed has led to more internet users. Nowadays IP Camera is one of the popular “Internet of Things”. Most of the IP cameras use Real Time Streaming Protocol (RTSP) due to the fact that RTSP complies with one-way audio/ video communication and streaming condition. The present study provides an improved RTSP protocol. Concepts and components similar to the SIP proxy server are introduced into conventional RTSP architecture. RTSP proxy server not only can assist RTSP media server under NAT firewall in positioning location and ensure that it can keep the RTSP channel connection but also provide the service about NAT port prediction. Furthermore, a new method about TCP traversal through NAT is applied in the improved RTSP in order to solve the peer to peer problem when the client and RTSP media server are both under NAT.