XUPNPD on different net

                                                                                       
                                                                                       
                      +-------------------+            +----------------+              
                      | Dsl fritzbox      +<-----------+ LAN wifi       |              
                      |    DHCP SERVER    |            | PC TABLET PS4  |<-----+       
               +----->+ 192.168.178.1     |            | 192.168.178.*  |      |       
               |      |                   +<-------+   | (lan)          |      |       
               |      +-------------------+        |   +----------------+      |       
               |                                   |                ^          |       
               |                                   |                |          |       
        +------+-------+         +-----------------+---------+      |          |       
        |   Other LAN  |         | lan 1                     |      |          |       
        |              |         | fritzbox3272 client ip    |      |          |       
        +--------------+         | 192.168.178.38            |      |OK        |NOT OK 
                                 |                           |      |          |       
                                 |                           |      |          |       
                                 +--+--------------------+---+      |          |       
                                    ^                    ^          |          |       
                                    |                    |          |          |       
                          +---------+----------+   +-----+----------+----+     |       
                          | Libreelec          |   |  WAN 192.168.178.3  |     |       
                          | Pleax media server |   | OPENWRT 192.168.3.1 |     |       
                          | 192.168.178.22     |   |    MJPG-streamer    |     |       
                          | (lan)              |   |       XUPNPD--------+-----+       
                          +--------------------+   +---------------------+            

Hello everybody
the one above more or less is the pattern of my network
How can I have Xupnpd on devices connected to wi-fi
as an icon on the PC, on Libreelec or on mobile phones detected by the BubbleUPnp server
if yes ... how?
On broswer I see the Xupnpd server because I made a Port Forwards rule, but I would also like to see it as a multimedia resource with its icon :slight_smile:
Thank you