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I have an application, sending information to a TCP connection to IP address:port 192.168.2.191:5000. In the corresponding logs, I can see this:

2025-01-10 09:25:02.1895 | Debug | ConnectionManager.Send | Telegram sent to Ip=[192.168.2.191]:Port=[5000]: telegram=[ZA00**MFS1PL01****01020010120000************************************************************]

When running a Wireshark capture, this is what I see:

Wireshark capture

Where is the ZA00... stuff in the Wireshark capture?

(For your information: I've checked all packets, going to that IP address (port), there is nothing containing that information.)

Is it possible that WireShark does not capture all information? Is it possible that Wireshark captures the information, but doesn't show it? ...?

Dominique
  • 2,373

1 Answers1

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As mentioned in the comments, the packet is only there if the application actually tries to send the packet: if the destination is not reachable, the application does not even try.
In case the destination is reachable, a result can be seen in the TCP protocol section of the Wireshark capture:

Wireshark screenshot

Dominique
  • 2,373