Error monitoring about libua HOT 19 CLOSED

Hello,

Can you share a Wireshark capture with no security?

from libua.

i don't know how to do with Wireshark

from libua.

https://help.salesforce.com/s/articleView?id=000385344&language=en_US&type=1

Otherwise you might be monitoring too many items in a single call. Try batches of a few items at once.

from libua.

opcua.zip

from libua.

Hi,
I don't know if it helps but with this library it works
https://github.com/convertersystems/opc-ua-client

best regards

from libua.

Looks like a PublishResponse is too large for the sender/receiver according to the initial configuration. I need to see a capture with no security, this connection is secured with encryption so I cannot read the messages.

from libua.

opcua2.zip

from libua.

Still encrypted:

You have to debug through this since I can monitor items with all of the test servers I have access to. If you can share an unencrypted capture I can try to help. Otherwise I can't find an issue.

from libua.

encryption where should I disable?

from libua.

Change SignAndEncrypt to Sign.

from libua.

Is None

from libua.

Check in Wireshark that you can see the contents of the PublishRequest message. It should show a full disassembly of the body if not encrypted. Otherwise only the headers are visible.

Example of a full body:

from libua.

var messageSecurityMode = MessageSecurityMode.None;
var securityPolicy = SecurityPolicy.None;

from libua.

i'm using the port 4841 and wireshark is set 4840. I changed the port to 4841
try now

opcua3.zip

from libua.

I can see the contents now. Not sure why it fails, the server publishes 0 notifications, the client sends another request and the server fails with BadUnexpectedError.

The only issue I can think of might be this:

Perhaps request a publishing interval of 5 seconds (5000).

from libua.

Reopen issue please

from libua.

I can try to assist you with library usage but I prefer to keep issues for problems with the library itself. Please try my suggestions above and let me know if that works.

from libua.

The problem is the parameter filter in MonitoringParameters,
if present response Goof is null return BadEncodingLimitsExceeded
IF presente the notification not work.

from libua.

Thanks, will note that if I see this issue again.

from libua.