Hello Peter,

Am 23.12.2019 um 23:09 schrieb Peter Dow <petercdow@xxxxxxxxx>:

On v7r3, a "SELECT * FROM mylib/myFile" returns the records from myMbr on the remote v5r4 machine.

You're talking about strsql? I'm not sure if this one is utilizing DDM in the background, so your verification might mislead.

[CPF9162] Cannot establish DDM connection with remote system.
Cause . . . . . : An error occurred during distributed data management (DDM)
initialization while attempting to establish a connection at the remote
location OCAL 0000.

That's really strange. I'm not sure if this helps in any way but I failed to provide proper authentication for DDM sessions over TCP/IP. It worked perfectly well with APPC. That was with V4R5, though. I never managed to get that resolved.

I'd recommend to build a test case to try the other way around, if that's a possible culprit. I'm successfully connecting with V4R5 to V7R2 to copy over some records via a trivial read-write loop.

:wq! PoC

PGP-Key: DDD3 4ABF 6413 38DE - https://www.pocnet.net/poc-key.asc

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