Answered: Consider the following scenario in…

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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Question

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:

Points A, B, and C.

S:
D:
B
S:
D
NAT translation table
WAN side addr
138.76.29.7, 5051
138.76.29.7
10-
LAN side addr
10.0.0.1, 2020
10.0.0.4
S
D:
S:
D:
A
D
10.0.0.1
10.0.0.2
10.0.0.3

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?
[Note: You can find more examples of problems similar to this here B.]
S:
D:
D
NAT translation table
WAN side addr
138.76.29.7, 5051
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:
LAN side addr
10.0.0.1, 2020
110.0.0.4
S
D:
S:
D:
A
[Choose ]
[Choose ]
138.76.29.7
10.0.0.4
10.0.0.1
80
5051
2020
10.0.0.1
[Choose ]
10.0.0.2
128.119.40.186
10.0.0.3

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how can i find the answer for point B and point C from point A.

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