Can someone please point me to the docs that show where the configuration settings are for setting the RTP/RTSP stream for Wowza to use as input? These doc pages sound like they're going to include these instructions, but they only show you how to configure the output streams, not the input!
You re-stream from an IP camera. IP The encoder is built-in. IP cameras with buillt-in h.264 support is what you want. I recommend one of the h.264 Axis cameras, which are easy to get working with Wowza.