Once the DropTap has been set up we need to connect it to a wire networked computer we wish to monitor. Connect the DropTap to a power source and allow it to boot up. Next we need to connect the DropTap to the original network cable into eth0. You will then take a network cable and attach it to the USB Ethernet plug and connect that back into the host, this will be eth1.
Make sure you have downloaded and loaded the DropTap application found in the Software / Hardware Requirements and is located HERE.
Now we use a mobile device with the DropTap app and connect to the wireless network labeled DropTap. Assign this network a unique IP address, the one used in this example is 192.168.3.25. Any changes to this address must be reflected in the TCPDUMP command found in the installation guidelines. Installation of Drop Tap
sudo tcpdump -n -i eth1 ip and not net 1.1.1.1 and not net 8.8.8.8 and not net 192.168.3.1 and not net 192.168.3.25Change the 192.168.3.25 to the address you selected.
You can now poll 30 seconds worth of traffic captures to ensure that traffic is flowing correctly by pressing "Traffic Dump" as shown below within the mobile app.
Once 30 seconds are up you will recieve a menu pop up stating capture is compete, select the menu icon in the upper left and select "Traffic Dump View"
Successful traffic captures will be visible now and should look somewhat similar to below.
If at any time you need to restart the Raspberry Pi select the menu icon in the upper left and select "Setting" to open up the administration menu.
You can now reset the device by hitting the "reboot" button on the left
