Which of the following systems acts as a NAT device when utilizing VMware in NAT mode?

When using VMware in Network Address Translation (NAT) mode, the host system acts as the NAT device. The virtualization software on the host creates a private virtual network for the guest virtual machines. When a guest system needs to communicate with the external network, the host system intercepts the traffic, translates the guest's private source IP address to its own IP address, and forwards the packet. This allows the guest system to access external resources using the host's network identity, without requiring its own unique IP address on the external network.

A. Guest system: The guest system is the client of the NAT service; it originates the traffic but does not perform the address translation itself.

B. Local gateway: The local gateway is the physical router on the host's network, which is upstream and unaware of the virtual NAT process.

D. Virtual system: This term is ambiguous. While the NAT device is a virtual component, it is the host system's software that provides this functionality.

1. VMware Workstation Pro Documentation: In the section "Using Network Address Translation

" the official documentation states

"The NAT device operates on the host system... VMware Workstation NAT uses the host computer's IP address to send and receive virtual machine network traffic." This confirms the host system performs the NAT function. (Source: VMware Workstation 17 Pro Documentation

Chapter: Configuring Network Connections

Section: Using Network Address Translation).

2. Carnegie Mellon University

School of Computer Science: In lecture notes for course 15-440/640: Distributed Systems

the networking modes for virtualization are described. For NAT

it is stated: "The VM gets a private IP address

and the hypervisor acts as a NAT router to translate it to the host's IP address." The hypervisor runs on the host system. (Source: CMU

15-440/640

Lecture 2: Virtualization

Slide on "VM Networking").

3. University of Washington

Paul G. Allen School of Computer Science & Engineering: Course materials for CSE 481I explain VMware networking modes. For NAT mode

it specifies: "The host OS has a Network Address Translation (NAT) service that transparently routes traffic between the guest OS and the physical network." (Source: University of Washington

CSE 481I

"Introduction to VMware" documentation).