How do I Disable ip6 in RAK7249

LPWAN Industrial Gateways / Concentrators RAK7249
1

Issue:Disable ip6

Setup:RAK7249 firmware 1.3.9

LoRa® Server:

Details: How do I disable IP6 in my RAK7249 console?

Oh, and 1 more thing - has the firmware for the RAK7249 disappeared or does it appear under a different model?