I have an embedded board with Ethernet connection that has to communicate with a remote RS232 device attached to a Connect ME device. That is, the serial data must be encapsulated in a TCP/IP frame by the CPU, sent by Ethernet cable, received by a Connect ME, converted to RS232, passed to the serial device, and its answer way back to my CPU in reverse order. I am receiving "Access to unopened port" in every frame. I think I should remotely configure the Digi device, but I don't know where to locate such information. Analyzing the communications, I see some prefixes to the information that goes and comes, but I need to know what does those prefixes mean just to build and interpret them.