@kersing - sorry to say but I haven't got poly_pkt_fwd working here. I installed this one: https://github.com/kersing/packet_forwarder/raw/master/multitech-bin/poly-packet-forwarder_2.1-r1_arm926ejste.ipk
Logfile:
*** Poly Packet Forwarder for Lora Gateway ***
Version: 2.1.0
*** Lora concentrator HAL library version info ***
Version: 3.1.0; Options: ftdi;
INFO: Little endian host
INFO: found global configuration file /var/config/lora/global_conf.json, parsing
INFO: /var/config/lora/global_conf.json does contain a JSON object named SX1301_
WARNING: Data type for lorawan_public seems wrong, please check
WARNING: Data type for clksrc seems wrong, please check
INFO: lorawan_public 0, clksrc 0
INFO: no configuration for tx gain lut 0
INFO: no configuration for tx gain lut 1
...
...
INFO: no configuration for tx gain lut 15
INFO: Configuring TX LUT with 0 indexes
WARNING: Failed to configure concentrator TX Gain LUT