RE: UDP not receiving packets after a while

MattiasE — Fri, 29 Jan 2021 09:42:41 GMT

Sorry about this, it's not a bug.

It was a NAT at our end in the "other" direction. I used connected UDP sockets (I have called connect() on the socket), so datagrams are only received from a specific address. As long as the NAT had a session the packets from my PC got the same source address as the device destination address. But when the session expired the packets from my PC got a generic source address and the device (nRF9160) received them but since I have connected the UDP socket to a specific address the packets was not forwarded to the application.

Sorry about posting this issue!

Best regards
Mattias Eriksson