Wireshark-users: [Wireshark-users] Find Ethernet settings on wireshark

From: "Cabral, Rui" <Rui.Cabral@xxxxxxxxx>
Date: Fri, 3 Sep 2010 11:36:28 +0100
 
Hi all,
 
I am a beginner to wireshark. I have look at the manual and some tutorial videos but I can not find what I need.
 
I have a Printer connected to a Switch (unmanaged) which is connected to another unmanaged switch where I have all my PC's also connected..
So it looks like Printer > Switch1 >Switch2 < Pc
 
I captures the traffic in order to try to find in what speed/mode 100MB Full or Half Duplex is the printer communicating with the switch. Where to check this on the trace?
 
I also would like to know if its possible to perform a word search on a trace file. If I would like to find all words matching "authentication" how would I do.
 
Thanks

Rui Cabral