Unable to receive device data in the Gateway Bridge

I have a multitech reader which sends device data(Omni Tag GPS) from packer forwarder to the Gateway Bridge. The Bridge is installed in a separate machine.


I used the command sudo tcpdump -AUq port 1700 and am able to see the below device message



The next step is to check if am able to receive the packets in the gateway bridge for which I used the command journalctl -f -n 100 -u chirpstack-gateway-bridge , but unable to see any device messages. This happens with only this device, whereas I am able to see the device data for other devices. Can you help me sort this issue. ?