On 11/17/2015 9:40 AM, ~BD~ wrote:
On 17/11/2015 17:02, mike wrote:
What's your definition of "monitor all traffic" and what tool
are you gonna use to do that?

He can use Wireshark https://www.wireshark.org/

Sure, but to what end?
Anybody who thinks they can manually decipher ALL traffic with
wireshark has a lot of time on their hands.
Hence, the request for clarification.

I've been trying to sort out wake on lan magic packets. I have wireshark
running on a laptop to monitor traffic...heavily filtered.
I don't have to
route the traffic through any particular machine...it
just works for what I need.

I try to PREVENT instead of monitor traffic.
I did this when I had too many machines and metered internet.
I didn't want them all burning thru my data allocation for no
good reason.

My router is at 192.168.1.1
My primary machine has a default gateway of 192.168.1.1
Other machines have a default gateway of 192.168.1.250
They can access each other, but attempts to leave the
subnet get dumped.

To access the internet, I have options.
A utility to change the default gateway.
Just use VNC or Remote Desktop to actually
use the primary machine's connection.
I make no claims for absolute security. You can
easily subvert it. It just worked most
of the time for what I needed done.

It all comes down to what the OP is trying to accomplish.
And we don't know that.