IBM RDi Rational Developer Ports

What TCPIP ports are used by IBM RD/i?

I’ve been struggling to get Rational Developer working while remote during the ‘Rona. While I’m working locked in my cellar, candles flickering, dogs growling and rats a scurrying, my laptop is connected with VPN and my guess is that VPN is blocking ports that RD/i needs for the connection.

Using SEU isn’t an option for modern RPGLE Developers, for many obvious reasons. I mean, obviously it’s a workaround, but since it adds hours to any program coding experience – we really need to use RDi for efficient programming on this wonderful IBM i system.

You may not have thought about IBM RDi Rational Developer Ports that need to be opened for RDi to function correctly. So let’s dive in it:

So what does I need to open for IBM RDi Rational Developer Ports?

If you are working remote and see this glorious error message:

The chances are you need to open some ports in your VPN or firewall configuration.

The mandatory ports for Rdi are: 8470, 8475, 8476, 446, 449

We also have some optional ports for Debug, IFS etc: 8473, 8472, 4300, 3825

Going into these ports in some more details

You need ports 8470, 8475, 8476, 446, and 449 to remain open for proper functioning of the product.

However, you only need to keep the IFS and Interactive job support ports open if you require those functions.

To change the local Remote System Explorer port that your workstation uses to connect to the IBM i server:

1. From the workbench menu bar, click Window > Preferences.
2. Expand Remote Systems and click Communications to select it.
3. You can change the port number in the RSE Communications daemon port number field.

To change the port that the debugger server listens on, use the IBM i WRKSRVTBLE command and add or change the entry QDBGSVR2.

If this entry is not found in the table, the debugger server listens on the default port 3825