Petteri, the only thing I would change is the range filter. In this configuration it isn't needed. Unless you are reverse igating a packet from the aprsis to rf, aprx isn't going to do anything with the data except log it. The aprsis will send packets back to the client (aprx) of stations that have been received by you anyway, for a period of time. It's for messaging purposes. I've seen that time be hours, maybe it's a configuration setting in the server software. Any extra data is a waste of bandwidth on the aprsis servers. Since I'm not the one paying for the servers network connection, I try to keep the data to a minimum, but that's just me.
Kurt, you did setup the axports file didn't you?
73 Max KG4PID