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OPC UA traffic capture
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Sylvio SOREL
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01/15/2019 - 03:16
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Hello everybody,

I am looking for random OPC UA traffic capture file (pcap) to map some Specification information with.

If someone can make available to me some pcap files with OPC UA traffic (with the tcp packets), as well as OPC UA encrypted traffic, it will be nice and make me saving time.

Thanks in advance for any help,

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Randy Armstrong
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01/15/2019 - 03:32
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You can use the sample applications in GitHub to generate as much test data as you need.

What are you planning to do with this data?

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Sylvio SOREL
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01/15/2019 - 03:36
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I used GitHub to generate OPC UA traffic but did not succeed for encrypted OPC UA traffic.

I am implementing some partial parser for OPC UA protocol and want to detect an encrypted OPC UA traffic over the network.

Those data also will help me creating some test for this parser/encrypted OPC UA detection.

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Randy Armstrong
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01/15/2019 - 11:38
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It should be as simple as selecting a security policy like Basic256Sha256 when the client connects.

I think you should spend your time figuring out what you are doing wrong when you run the reference applications rather than trying to use pre-generated data. That way you can test your program with live data.

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Sylvio SOREL
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01/18/2019 - 08:09
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Thank you for for response.

I have found my problem, I was actually generating OPC UA encrypted traffic in the right way, the Wireshark OPC UA dissector doesn’t recognize OPC UA encrypted traffic even with a none encrypted header.

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