Can I replicate traffic that is being passed on my network?
If someone is downloading a file or image, I can see the image or get a copy of that file?

I've never used Wireshark, (or any other packet analyzer), as I'm not really a network guy..

The only packet monitoring tool I've really used is Microsoft's Network Monitor (a.k.a. NetMon).

However, AFAIK that doesn't support replication of traffic. It's strictly for monitoring, so you can see associates MAC addresses with known systems, gauge traffic load, etc.

There probably is such a tool out there though dk. I'm just not aware of it.

if theres anything that'll do it, it's probably wireshark

i know there's an option to 'Follow TCP Stream', but there's probably something else