It will need to be formatted in NTFS, but we'll deal with that later. You can pick up any USB flash drive that you like, but the smaller the physical size, the less bulk you'll add to the Packet Squirrel. To capture the results of the traffic we're eavesdropping on, we'll also need a USB flash drive.

Buy: Small battery pack for longer sniffing sessions.

Buy: Small battery pack for short sniffing sessions.

For an extended session, a bigger battery pack with a Micro-USB cable will be necessary. If the drop-off won't be long, a tiny battery pack could be enough (this one comes with its own tiny USB cable!). The Packet Squirrel requires just 5 volts and 150 milliamps, so you could use something as simple as an extra smartphone charger. In our demonstration, we're just plugging it into our computer's USB port, but if you want to deploy it out in the real world, you'll need a power adapter or small battery instead. It doesn't come with a power adapter, so we'll also need a Micro-USB cable and power source.

Buy a Packet Squirrel: Hak5 Shop | Amazon.

You can get one from its website, Amazon, or possibly another shop online.

Since we're using a Packet Squirrel for this demonstration, we'll obviously need a Packet Squirrel, which was created by Hak5. Then we can do pretty much anything we want.

Once somebody accesses the router, we gain access to the credentials to log in. If the router isn't using HTTPS, we can record all of the traffic over the Ethernet.

Let's say there's a router that we need to know the password for, and we have physical access to an Ethernet connection where we can attach a Packet Squirrel, a pocket-sized tool to main-in-the-middle the network. If you've spotted an unintended Ethernet connection and wondered what you could do with all of the information coursing through those wires, there's an easy way to hack into it and find out.

Wireshark android permission