While this didn't answer my question, there are several reasons. I use my iPad as a single remote for my ten AV devices. With the exception of the xFinity cable box, all the others are IP controllable. In order to control the cable box, I need an IP to IR converter device. This adds a complication to my setup. Having IP compatibility, would allows more automation, as one can write code to control things.
Does anyone know the answer to my original question?
Thank you for your reply.
Interesting. I think that's the same box I have - an XG1v4.
It has a port, but IP is not enabled. Presumably then, with FLEX, it is enabled.
Something to explore.