> On Jun 23, 2021, at 9:47 PM, HAN Hao <han....@stengg.com> wrote: > > Hi all, > > I have a problem recently while using the live555proxyserver. I currently > have 2 UP-Squared that is connected to 2 IP cameras. The UP-Squared behaves > like a network gateway since the 2 IP cameras resides in a different subnet > mask as my server. The live555proxyserver resides in my server and when I > attempt to use the live555proxyserver to rehost both streams from the IP > cameras, I realized that both the IP cameras are sending rtp packets to the > same port(5004) on my server. This problem only seems to occur while using > UDP and when I input –t to force it through TCP, the IP cameras managed to > send to different ports on my server. Are there any parameters that I can > modify so that the RTP packets over UDP will be sent to different ports on my > server?
For unicast streams like this, it is the RTSP client that chooses the destination port number for RTP packets. In particular, the "LIVE555 Proxy Server” - which acts as a RTSP client for each ‘back-end’ RTSP server (e.g., IP camera) - chooses the destination RTP port number for each stream, and it will always choose a different port number for each stream. You should be able to see this by looking at the RTSP protocol exchange for each ‘back-end’ stream, which you can see by running “live555ProxyServer” with the -V flag (note the “client_port=“ in each RTSP SETUP request from the proxy server). It appears that your intermediate “UP-Squared” boxes are likely responsible for your problem; it seems that they are remapping the port number of incoming RTP packets (from the back-end IP camera) to 5004. You will need to disable this functionality in your “UP-Squared” boxes. (Or, alternatively, remove your “UP-Squared” boxes entirely, and change your server so that it acts a a gateway, and is aware of both IP subnets.) In short, this is a problem with your networking setup, not a problem with the LIVE555 software. Ross Finlayson Live Networks, Inc. http://www.live555.com/ _______________________________________________ live-devel mailing list live-devel@lists.live555.com http://lists.live555.com/mailman/listinfo/live-devel
