WHITEPAPER: How to Connect to an Ethernet Device for Communication

How to Connect to an Ethernet Device for Communication

To connect and communicate to an Ethernet device like an Acromag Ethernet module, you have three potential connection scenarios:

  1. Direct connect your Ethernet device to your computer – Easiest but the most restrictive, as it dominates the use of your Ethernet port and may temporarily take your computer off-line from the internet.
  2. Network connect your Ethernet device to your LAN (Local Area Network) – A little more complicated and does not include remote access from another network.
  3. Remotely connect to your Ethernet device over the internet – This requires the second scenario, but adds Port Forwarding, requires a static public IP address, and potentially adds the services of a VPN (Virtual Private Network).

This paper gives detailed information and examples on how to make these connections.

Topics Discussed:

  • What is Ethernet?
  • The Internet Protocol (IP) and Ethernet Addressing
  • The Transmission Control Protocol (TCP)
  • The User-Datagram Protocol (UDP)
  • The MAChine Address
  • Three Different Types of Connection to an Ethernet Device