Wireshark · Wireshark-users: [Wireshark-users] Does Wireshark modify the Ethernet Interface in ANY way while capturing?

[Michael <mriot@xxxxxx>]

Hello everyone.

I've got a little Problem. I'm trying to send an AT-Command via TCP to a 
Satellite Terminal. As I have never done that before, I just wrote a 
little Script for testing that. And now the following happens. If I just 
let my script run, I get a timeout while reading the answer from the 
Terminal. So, I wanted to have a look at the sent Packets and started 
Wireshark, started my Script again - and this time it works. I ran some 
more tests, and the thing is, when wireshark is running - my script 
works, if wireshark does not run, I get a timeout.
So my question is, does Wireshark modify the Ethernet interface with 
some options? Or what could explain this behaviour? I'm at quite a loss 
with this situation and would appreciate any hint or help that could 
help me solve this particular problem.

Greetings
Michael