Cannot connect sample server with Softing's OPC UA client

[pfp.m...@gmail.com]

I can connect to the server.exe example as part of the Win64 package with UaExpert.

However the generic client from Softing fails to connect. Error message is:

  ERROR - Server did not return an EndpointDescription that matched the one used to create the secure channel.

When trying to connect the UnifiedAutomation C++ SDK client console example, it also fails in making a connection. 

  Error: UaSession::connect failed [ret=BadUserAccessDenied]

Rebuilding a server app with usernamepassword flag disabled (so only anonymous) gives:

  Error: UaSession::connect failed [ret=BadIdentityTokenInvalid]

Any clue? 

Thanks, Patrick

[Julius Pfrommer]

Hello Patrick,

I will try to reproduce the errors you see.
There's a ticket in our bugtracker now: https://github.com/acplt/open62541/issues/249

Are you connecting from localhost or over the network?
We automatically put the server's hostname into the endpointdescription.
The Softing error looks like the client expects "opc.tcp://localhost:16664" in the endpointdescription, but finds "opc.tcp://<hostname>:16664" instead.

Best regards
Julius

[Sten Grüner]

Hi Patrick,

Julius has fixed the softing issue in the master, please check if its okay for you now.

Regarding UA C++ client, it turns out that it only can connect to server using username/password. I was successful to connect and read a value and browse using the following config (ClientConfig.ini in the folder of the client):

[UaClientConfig]
DiscoveryURL =opc.tcp://localhost:48010
ServerUrl    =opc.tcp://localhost:16664
CertificateTrustListLocation      =C:\ProgramData\UnifiedAutomation\UaSdkCppBundleEval/pkiclient/trusted/certs/
CertificateRevocationListLocation =C:\ProgramData\UnifiedAutomation\UaSdkCppBundleEval/pkiclient/trusted/crl/
IssuersCertificatesLocation       =C:\ProgramData\UnifiedAutomation\UaSdkCppBundleEval/pkiclient/issuers/certs/
IssuersRevocationListLocation     =C:\ProgramData\UnifiedAutomation\UaSdkCppBundleEval/pkiclient/issuers/crl/
ClientCertificate                 =C:\ProgramData\UnifiedAutomation\UaSdkCppBundleEval/pkiclient/own/certs/uaclientcpp.der
ClientPrivateKey                  =C:\ProgramData\UnifiedAutomation\UaSdkCppBundleEval/pkiclient/own/private/uaclientcpp.pem
Username                          =user1
Password                          =password
UseWindowsStore                   =0
WindowsStoreLocation              =CURRENT_USER
WindowsStoreName                  =UnifiedAutomationUaClientCPP
WindowsIssuersStoreName           =UnifiedAutomationUaClientCPPIssuers
WindowsClientCertificateThumbprint=x
NS1/Method01       =AirConditioner_2.Stop
NS1/NameSpaceUri   =urn:unconfigured:open62541:open62541Server
NS1/Object01       =AirConditioner_2
NS1/Variable01     =the.answer

HTH
Sten

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Chair of Process Control Engineering
RWTH Aachen University

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[Sten Grüner]

Hi Patrick,

Chris is currently working on it in the dev branch: https://github.com/acplt/open62541/tree/dev
Still work in progress AFAIK.

Best Regards
Stem



On 19/05/15 12:49, Patrick & Patricia Meijers wrote:

It works! 

Thanks. Patrick

Btw, any plans for supporting monitored items/subscriptions?

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