Hello,
I hope it’s okay if I post my blog post here. I have been trying out IP tunneling with the Meshtastic Starter Kit from RAKwireless. I have recorded my experiences in a blog post:
German: Einstieg in Meshtastic | mk16.de
English: Getting started with Meshtastic | mk16.de
TLDR: After some effort, I was able to assemble the Meshtastic Starter Kit. ICMP and UDP work well and quite reliably. However, I was not able to establish a TCP connection.