IBM Reason Code 2009 when attempting to connect to external host .net - ibm-mq

Question

I'm very new to IBM MQ and feel like I'm missing something fairly easy.
I received the following files and I'm attempting to connect to an externally hosted MQ:
.crl
.kdb
.rdb
.sth
.tab
I've tried several different approaches, but the "furthest" I think I've gotten is:
MQRC_CONNECTION_BROKEN Reason: 2009 when I attempt to create a new Queue Manager connection.
Below is my most recent block of code, trying to get this to work:
using IBM.WMQ;
...
Hashtable connectionProperties = new Hashtable();
connectionProperties.Add(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_MANAGED);
connectionProperties.Add(MQC.HOST_NAME_PROPERTY, SOME_ADDRESS);
connectionProperties.Add(MQC.CHANNEL_PROPERTY, SOME_CHANNEL);
connectionProperties.Add(MQC.PORT_PROPERTY, SOME_PORT);
connectionProperties.Add(MQC.SSL_CERT_STORE_PROPERTY, PATH TO KDB FILE without .kdb);
connectionProperties.Add(MQC.SSL_CIPHER_SUITE_PROPERTY, SOME_CIPHER);
MQQueueManager qmgr = new MQQueueManager(SOME_VALUE, connectionProperties);
Prior to this I was attempting to set the MQ_CHANNEL_LIB and MQ_CHANNEL_TAB environment variables and call MQQueueManager qmgre = MQQueueManager() but that resulted in a 2277 error code.
I'm currently using the IBMMQDotnetClient/9.3.0 nuget package. Any help would be greatly appreciated.

Answer 1

The *.kdb file is a ssl keystore file containing certificates required to connect to queue manager. The *.kdb file can only be used with Transport type (TRANSPORT_PROPERTY property) MQC.TRANSPORT_MQSERIES_CLIENT. In this mode, MQ .NET client uses MQI C client underneath to communicate with queue manager.
The *.tab file is a client channel definition table (CCDT) file containing connection information like qm name, channel name, host name and few others required to connect to your queue manager.
Since you are using IBMMQDotnetClient/9.3.0 nuget package, TRANSPORT_MQSERIES_CLIENT transport type can't be used as the package doesn't contain MQI C client. With this nuget package you can only use TRANSPORT_MQSERIES_MANAGED. Ask your admins/management if they can provide you Redistributable MQ client. This package contains MQI C, .NET and other MQ clients libraries. You can choose to install the client libraries you want to use.

Answer 2

As Shashi mentioned if you need to use the Unmanaged mode,you need MQ C Client libraries as well.
You need to reference "amqmdnet.dll" which comes with IBM MQ Redistributable package to your .NET project. You can download IBM MQ Redistributable package from IBM Fix central.
To use CCDT, you need to set MQCHLLIB & MQCHLTAB environment variables.On how to create a CCDT file you can refer KC page:Configuring a binary format CCDT
After creating the CCDT File, i had used only the following code in my project to establish a successful connection
Environment.SetEnvironmentVariable("MQCHLLIB", #"C:\ProgramData\IBM\MQ\qmgrs\QMSSL\#ipcc");
Environment.SetEnvironmentVariable("MQCHLTAB", "AMQCLCHL.TAB");
Hashtable properties = new Hashtable();
properties.Add(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_CLIENT);
Environment.SetEnvironmentVariable("MQSSLKEYR", #"C:\temp\Certs\ForCclient\client");
try
{
queueManager = new MQQueueManager(queueManagerName, properties);
}
catch (MQException e)
{
Console.WriteLine("ERROR - Connect failed with unexpected MQRC {0}", e.ReasonCode);
throw e;
}