I've been using NR as an orchestrator (i hope im using that term properly) in the company I work for, for the last year.
Recently we started exploring NB-IoT technology which communicates using UDP packets.
I am currently trying to send UDP packets between two separate NR instances
(Both instances are running recent versions.).
Lets call them NR_1 and NR_2:
- NR_1 is hosted on a remote Windows Server
- NR_2 is hosted in a Docker Container, running on a remote Ubuntu Server
When sending an IPv4 UDP packet (using a simple injection node wired to an IPv4 UDP out node) from NR_1 to NR_2 i receive it and everything is good.
Quick note on that though: for some reason i receive the IPv4 packet to both listeners on NR_2 (IPv4 UDP in as well as IPv6 UDP in)
The problems begin when trying to send an IPv6 UDP packet from NR_1 to NR_2. So the packet leaves NR_1, reaches the Ubuntu Server (captured it on tShark) but never reaches the container and inevitably neither does it reach NR_2.
To make matters even more confusing, i tried sending the same packet with the same config from NR_2 to NR_2 and it worked for a couple attempts, before forever breaking and never working ever again.
Let me add another quick note here and say that I have taken the necessary steps to bridge the container with the server (proven by the fact that the IPv4 test works).
I am not expert in any of this (neither NR nor networking or containers), but this seems like something simple that should be working easily.
Any help is appreciated and ofc im terribly sorry for any missing information.
I can share the flows but i see no point since everything is extremely simple (inject nodes connected to UDP out nodes from one side, and UDP in nodes connected to debug nodes from the other side.