Darren, when you request a fill, it will contact with rtmp or polling FDS server. Then FDS looks into the configuration and try to locate CFserver (not the client itself). Tries to connect to it (if no hostname is defined in the destination configuration) with RMI. ColdFusion accepts the connection if the IP is in the allowed IP list that you can find inside the CF administrator in the flex related window. Then if allowed, if checks for the CFC assembler, calls the fill method, returns to FDS and FDS returns to the client.
The EndPoint must target always FDS and never CF. João Fernandes
