• Subject: Controlling ports used by DDM
  • From: rob@xxxxxxxxx
  • Date: Mon, 22 Jan 2001 16:37:30 -0500

We are using DDM over IP for our internal use.  We have a bunch of internal
companies and have done some tight integration we call internal EDI.  We
are now going to be doing some major work for a customer which has also has
a 400 running BPCS 4.0.5CD.  We want to be doing this internal EDI with
them.  We will be setting up a VPN and continue to use DDM over IP.   IT
has always been considered a strategic advantage here, and one of the 4
pillars of our company.  We will be doing all of the customers connection
to the Internet over their T1.

I've done some testing and which port gets used by the server seems to
jump.  Testing involved:
Then going to rmtsys and doing
and displaying the joblog.  In message CPI9162 it displays the port used.
But the darn thing will vary!  10516, 10530, etc.  My thought is to only
open up 10500 through 10599.  The Cisco kid can do this but he wondered if
it also uses a different port to initialize the conversation.  I've heard
of this happening for ftp or telnet, like use port xxx to start the comm
then use port yyy for the actual work.  I am not sure that DDM uses any of
these initiator ports.

Opinions please about which ports to open up for DDM.

Rob Berendt

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