I am trying to configure system folowing your Wiki page
My device is : Product code RUT95620XXXX
Firmware version RUT9M_R_00.07.21.3
BACnet via LTE configuration:
I have completed all configuration steps, but I am unable to finalize the Foreign Device Registration (FDR) in YABE (Yet Another BACnet Explorer).
Current Observations:
YABE Error Message: The software returns: "The given address do not match with the IP version."
Wireshark Analysis: A packet capture reveals that the remote device responds with: "82 destination unreachable (port unreachable)."
Connectivity: I believe the LTE connection between RUT1 and RUT2 is established, as I am receiving ICMP responses from the remote site.
Local Validation: When I connect my PC directly to the RUT2 LAN port, YABE successfully discovers and communicates with the BACnet device connected via the RS485 port.
The Problem:
Communication works flawlessly over the local network, but fails over the LTE bridge.
Thank you for the detailed description. We are currently investigating the issue with YABE Foreign Device Registration (FDR) and the error “address does not match with the IP version” in your LTE-based BACnet setup.
To proceed, please confirm the following configuration details based on the LTE BBMD scenario from our official RUT956 BACnet configuration example :
LTE WAN IP (RUT2)
Is the LTE WAN interface assigned a public IPv4 address, or is it behind NAT (e.g. 10.x.x.x / 100.64.x.x)?
Is IPv6 or dual-stack enabled on the mobile interface?
BBMD Setup (RUT2)
Which interface is selected as BBMD:
LTE WAN or br-lan?
Is Allow Remote Access / Port Forward enabled?
BIP Configuration
Confirm BACnet/IP port (default: 47808)
On RUT2, is BIP bound to:
LAN interface or
Mobile WAN interface
YABE FDR Configuration
Which IP is used for registration:
RUT2 IPv4 WAN or IPv6?
Is the YABE host operating in IPv4-only or dual-stack mode?
RUT1 Port Forwarding
Is UDP forwarding configured from WAN to the YABE PC?
Does it correctly match:
PC LAN IP
YABE listening port
Packet Capture
Destination IP and port of rejected traffic?
IPv4 or IPv6 observed?
Capture location (PC / RUT1 / RUT2)?
If possible, please also attach screenshots of:
BACnet / BBMD / BIP configuration
Firewall / NAT rules
Wireshark or tcpdump logs
Once received, we will analyze the setup in detail and proceed with troubleshooting.
