N$8\mathrm{.}3.$ In Figure $1,$ Machine X has established a VPN with Machine Y$,$ which is a VPN

server connected to the private network $10\mathrm{.}0\mathrm{.}20\mathrm{.}0/24.$ With the VPN$,$ a user on

Machine X can now access machines on the $10\mathrm{.}0\mathrm{.}20\mathrm{.}0/24$ network. The user

runs the following command on Machine X: "telnet $10\mathrm{.}0\mathrm{.}20\mathrm{.}100".$ Figure $1$

shows the packet flow triggered by this command.