Trouble routing from a modem to a server

[Andersk87]

Hi!

I'm strugling to get a BBMD route from a Teltonika modem running bacpypes to a server in Azure. We have a custom APN, with all bacnet-ports open.

I Have a device with the IP 172.22.108.7 On the modem. The modem have the adress: 172.24.1.54. The server have the adress 10.64.160.133.

I have tried the IP2IPRouter-example, with the following error:

python IP2IPRouter.py 10.64.160.133/24:47808 1 172.22.180.7/24:47808 1 Traceback (most recent call last): File "/root/bacnet/IP2IPRouter.py", line 126, in <module> main() File "/root/bacnet/IP2IPRouter.py", line 112, in main router = IP2IPRouter(Address(args.addr1), args.net1, Address(args.addr2), args.net2) File "/root/bacnet/IP2IPRouter.py", line 55, in __init__ self.s1_mux = UDPMultiplexer(addr1) File "/usr/lib/python3.9/site-packages/bacpypes/bvllservice.py", line 96, in __init__ self.directPort = UDPDirector(self.addrTuple) File "/usr/lib/python3.9/site-packages/bacpypes/udp.py", line 155, in __init__ self.bind(address) File "/usr/lib/python3.9/asyncore.py", line 326, in bind OSError: [Errno 99] Address not available

what am I missing here?

[JoelBender]

First, make sure you are using the correct network identifiers for the two link layers, so at least pick one of them as 1 and the other as 2

$ python IP2IPRouter.py 10.64.160.133/24:47808 1 172.22.180.7/24:47808 2

Now double check that the IPv4 network size is correct, they might not both be /24 networks. The application will attempt to open sockets for 10.64.160.133 for unicast, 10.64.160.255 for broadcast, and 172.22.180.7 for unicast, 172.22.180.255 for broadcast. At least one of those is failing.