**4.3-2a Network Address Translation (a).**Consider the following scenario in which host 10.0.0.1 is communicating with an external web server at IP address 128.119.40.186. The NAT table shows the table entry associated with this TCP flow. What are the source and destination IP address and port numbers at point A?**Diagram Explanation:**- **NAT Translation Table:** - **WAN side address:** 138.76.29.7, port 5051 - **LAN side address:** 10.0.0.1, port 2020- **Network Diagram:** - Three computers with IP addresses 10.0.0.1, 10.0.0.2, and 10.0.0.3 are connected to a LAN. - A router connects the LAN to the Internet. - The IP address of the router on the LAN side is 10.0.0.4. - The IP address of the router on the WAN side is 138.76.29.7.- **Data Flow Paths:** - **A**: The path from 10.0.0.1 to the router. - **B**: The path from the router to the Internet. - **C and D**: Other paths for data flow in the network.**Questions for Completion:**- The source IP address is: [_Choose_]- The destination IP address is: [_Choose_]- The source port number is: [_Choose_]- The destination port number is: [_Choose_]**Options for Selection:**- 5051- 80- 128.119.40.186- 2020- 10.0.0.4- 10.0.0.1- 138.76.29.7This educational setup aids in understanding how NAT translates IP addresses and ports as data flows between a private network and the Internet.

4.3-2a Network Address Translation (a). Consider the following scenario in which host 10.0.0.1 is communicating with an external web server at IP address 128.119.40.186. The NAT table shows the table entry associated with this TCP flow. What are the source and destination IP address and port numbers at point A? S: D: B 5: D NAT translation table WAN side addr LAN side addr 138.76.29.7, 5051 10.0.0.1, 2020 138.76.29.7 10- The source IP address is: The destination IP address is: The source port number is: The destination port number is: 10.0.0.4 S: D: [Choose ] [Choose ] 5051 80 128.119.40.186 2020 10.0.0.4 10.0.0.1 120 76207 10.0.0.1 10.0.0.2 10.0.0.3

4.3-2a Network Address Translation (a). Consider the following scenario in which host 10.0.0.1 is communicating with an external web server at IP address 128.119.40.186. The NAT table shows the table entry associated with this TCP flow. What are the source and destination IP address and port numbers at point A? S: D: B 5: D NAT translation table WAN side addr LAN side addr 138.76.29.7, 5051 10.0.0.1, 2020 138.76.29.7 10- The source IP address is: The destination IP address is: The source port number is: The destination port number is: 10.0.0.4 S: D: [Choose ] [Choose ] 5051 80 128.119.40.186 2020 10.0.0.4 10.0.0.1 120 76207 10.0.0.1 10.0.0.2 10.0.0.3

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

VLAN

VLAN stands for Virtual Local Area Network, and it is created from one or more local area networks. A Virtual Local Area Network (VLAN) is a customized network made up of one or more LANs. It allows a set of devices from different networks to be converted into a single logical network. As a result, a virtual LAN that is managed similarly to a physical LAN emerges.

Question

**4.3-2a Network Address Translation (a).**

Consider the following scenario in which host 10.0.0.1 is communicating with an external web server at IP address 128.119.40.186. The NAT table shows the table entry associated with this TCP flow. What are the source and destination IP address and port numbers at point A?

**Diagram Explanation:**

- **NAT Translation Table:**

- **WAN side address:** 138.76.29.7, port 5051
- **LAN side address:** 10.0.0.1, port 2020

- **Network Diagram:**
- Three computers with IP addresses 10.0.0.1, 10.0.0.2, and 10.0.0.3 are connected to a LAN.
- A router connects the LAN to the Internet.
- The IP address of the router on the LAN side is 10.0.0.4.
- The IP address of the router on the WAN side is 138.76.29.7.

- **Data Flow Paths:**
- **A**: The path from 10.0.0.1 to the router.
- **B**: The path from the router to the Internet.
- **C and D**: Other paths for data flow in the network.

**Questions for Completion:**

- The source IP address is: [_Choose_]
- The destination IP address is: [_Choose_]
- The source port number is: [_Choose_]
- The destination port number is: [_Choose_]

**Options for Selection:**
- 5051
- 80
- 128.119.40.186
- 2020
- 10.0.0.4
- 10.0.0.1
- 138.76.29.7

This educational setup aids in understanding how NAT translates IP addresses and ports as data flows between a private network and the Internet.

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