Please make sure you installed the Raspberry Pi image from Motiondetection.be.(more info)
Motion can connect to certain network cameras.
Motion cannot connect to a video stream such a mpeg, mpeg4, divx.
The URL must return one single jpeg image, a mjpeg stream a RTSP stream, RTMP stream, file or ftp.
When getting a still image, make sure to validate that the camera is serving up a actual raw JPG file and not a HTML page with an embedded JPG which Motion will not be able to process.
If the connection to a network camera is lost, Motion will reuse the last good image for approx 30 seconds. After 30 seconds the image is replaced by a grey image with a text telling that the signal is lost and when the connection was lost.
Please BOOKMARK this page in your browser for easy access to your online motions.
With smartphones you are able to create a launcher on the home screen.