\noindent
In 2020, when we abruptly moved 2.680 mid-semester to remote learning, this
is how we connected our machines for the labs. It worked. But it required
each participant to navigate (in some cases find) their home router and log
in to make the port forwarding configurations. This year we have decided to
use a Virtual Private Network (VPN) using WireGuard. With a VPN we will all
be on the same local network:

\vspace{0.1in}
\begin{figure}[H]
  \centering
  \includegraphics[width=0.56\textwidth]{figures/networking3.png}
  \caption{A virtual private network (VPN) will be used in our 2.680 labs. Each
  user will have a unique assigned IP address on a local (virtual) network.}
  \label{fig_net3}
\end{figure}
\vspace{0.1in}

\noindent
With this arrangement, all IP addresses used for connecting shoreside and
vehicle communities will use the local VPN addresses. Each person in 2.680,
students and TAs, will have an assigned IP address for use in the labs. 


