Join packets with JoinEUI of 00-00-00-00-00-00-00-00

[jchonig]

Should this be here or on the multitech-installer repo?

In order to ease the transition to TTN v3, we've updated endpoint software to use a JoinEUI of all zeros.

This works fine on Basic Station (RAK7258, Multitech Conduit, Multitech Conduit A/P.

However this does not work on a Multitech Conduit with mp-packet-forwarder_3.0.25-r2_arm926ejste.ipk installed. The join packets are silently discarded. Nothing received on the TTN end and nothing in the local log file.

Thanks.

Jeff

[matthijskooijman]

I also ran into this. These all-zero AppEUI joins are received by the concentrator according to the debug output, but never forwarded to the network.

I am using a self-compiled version about two years old. Git master of this repo has not moved since, but maybe some of the subrepos have. I was using these versions:

        root@mjs-gateway-5:/opt/ttn-gateway/dev# for i in *; do (cd $i; echo -n "$i: "; git describe --tags --always); done
        lora_gateway: 4d8f57f
        packet_forwarder: e84e9a3
        paho.mqtt.embedded-c: v1.0.0-64-ge4e0402
        protobuf: v3.11.4-214-ged5c874de
        protobuf-c: v1.2.1-1-g63c78ee
        ttn-gateway-connector: 10bfae4

[kersing]

Can you please disable the 'if' at ttn_transport.c line 510 and try again?

[matthijskooijman]

That looks like a likely culprit indeed: https://github.com/kersing/packet_forwarder/blob/e84e9a38d3c5deeaf6792b1e77449cf119cd542b/mp_pkt_fwd/src/ttn_transport.c#L510

I don't have a dev setup at hand right now, but I'll try to find a bit of time soon to try that change.

[kersing]

My dev setup has an USB concentrator that requires this check in order not to flood TTN with garbage data. :-(

[matthijskooijman]

Hey, I finally gotten around to testing your fix, I see you've already committed it to master. For me, this solves the problem and so far the one gateway I tested this on (Lorank-8/Larank-8) seems to be running fine (for a few hours now).

Thanks!

[kersing]

I've tested extensively and the USB concentrators are running fine as well with the low level library I'm using so this one is fixed.

[terrillmoore]

Thanks!