One of the main challenges with IP cameras is compatibility issues with your streaming encoder software/system (i.e. does the encoder software/system recognize the camera input?). For example, IP cameras are not compatible with the Sunday Streams Live Encoder, but other encoders that work well with our system have options for working with IP cameras. See the links below for more details about encoder options that work with IP cameras.
Other encoders and streaming hardware systems can work with IP cameras as well, simply check the help documentation for the encoder system to see if there are setup options for IP cameras.