[erlang-questions] Erlang/OTP diameter relay doesn't work

Asier Gutierrez Rubio agutierrez@REDACTED
Thu Oct 10 17:07:46 CEST 2019


Hi Anders,

Thanks for the advice!!! You were right, we didn't have the P-bit set. Now it works fine!
________________________________________
From: Anders Svensson GS <anders.gs.svensson@REDACTED>
Sent: Thursday, October 10, 2019 1:17 PM
To: erlang-questions@REDACTED
Cc: Asier Gutierrez Rubio
Subject: Re: Erlang/OTP diameter relay doesn't work

Hi Asier.

Assuming you've configured the relay application as in the example,
the only reason you should get 3001 is if your CCR doesn't set the
P-bit, in which case it has to be locally processed.

Anders


erlang-questions-request@REDACTED writes:
>
> We are trying to build a simple diameter relay agent for our company which will connect diameter clients to a number of different billing diameter servers. Right now we are just testing the system with one client and one server.
>
>
> Unfortunately, we are unable to get even the relay example from ericsson repository working.


> We modified slightly the example to connect to our diameter server on a remote address and listen to the local port TCP/3868. The relay agent connects successfully to our diameter server, performing a full CER/CEA exchange and subsequent DWR/DWA. Our client successfully connects to the relay agent through CER/CEA, but when the client sends a Credit Control Request (AVP Request-Type:4, Requested_Action: 2, Command-Code: 272), we get 3001 DIAMETER_COMMAND_UNSUPPORTED consistently, every single time. Peer_up callback is called, but no handle_request or pick_peer callback is called. When we try to use the same client with the server directly, everything works fine and we get 2001 SUCCESS.
>
>
> We are sure we are missing something, maybe a parameter in the transport options, a callback that we need to implement or something like that.
>
>
> Could you give us a hint?
>
>
> Thanks in advance,
>
> Asier
________________________________


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