No, it's not a LAN connection.
My PC is here with my Control RRC connected to Router 1.
140Km away is my radio RRC connected to the router 2. This Router is configured with a dyndns.org address and the DMZ pointing to the Radio RRC IP (192.168.1.150).
When I put the dyndns.org address in my PC browser, I go into the Radio RRC configuration page without any problem and I read the external IP address (writing it down on a paper),
but, when I put that same dyndns.org address in the Control RRC Sip Contact Box, the system doesn't work (no connection and 3 tones sound). It only works if I put the router 2 external IP in the control RRC SIP contact box (the one I read before).
Do you understand my question?
73's from EA5EXK Juan Carlos