Explain in details with steps ( necessary diagrams) how a firewall does address translation when it receives a TCP packet from a remote web server intended for a web client on the private network and the translation table contains the matching tuple needed for NAT.

Explain in details with steps ( necessary diagrams) how a firewall does address translation when it receives a TCP packet from a remote web server intended for a web client on the private network and the translation table contains the matching tuple needed for NAT.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter9: Computer Networks

Section: Chapter Questions

Problem 16VE

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Concept explainers

Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.

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Keep in mind that packet reordering and reassembly occur throughout the transport phase of the TCP/IP protocol suite's operation. It is possible for a firewall to operate at a lower abstraction level, such as the Internet or data layer. Any information about a traffic stream that is out of order or has been deleted will be lost by a stateful inspection firewall that is using stateful inspection.
In TCP/IP communication, a session needs to be established before communication and terminated after the communication. With the aid of diagrams critically explain TCP session establishment and termination processes in communication
Don't forget that the TCP/IP protocol suite's transport stage is where reordering and reassembly of packets occurs. If necessary, a firewall may function at the Internet or data layer level of abstraction. In the event that a traffic stream is out of order or has been erased, a stateful inspection firewall will be unable to learn anything about it.
In transport layer protocols, acknowledgements are one of the techniques available (such as the RDT 2.0 protocol that we covered before). Is it possible for an acknowledgement to be contaminated in some way? So, what is the process in place to deal with this situation?
I need The Answer Pure Aloha in Multiple Access Protocols should be described in three to four lines, without plagiarizing.
Keep in mind that packet reordering and reassembly occur throughout the transport phase of the TCP/IP protocol suite. A firewall may operate at a lower level of abstraction, such as the Internet or data layer. A stateful inspection firewall will be unable to discern anything about a traffic stream that is out of order or has been wiped.
Data collision occurs when multiple senders simultaneously attempt to access the communication medium. Various protocols have been developed to mitigate this issue. These protocols operate at different layers of the network stack. Could you please provide more specific information about the protocols you are interested in? Do these methods ensure reliable gearbox without any possibility of collisions? What alternative solutions are available if this approach proves ineffective?
Remember that the TCP/IP protocol suite performs packet reordering and reassembly during the transport phase. For example, firewalls may function on the Internet or the data layer, which is a lower level of abstraction. If a traffic stream is out of order or erased, a stateful inspection firewall will not be able to determine anything about it.
One of the techniques used in transport layer protocols is the receipt of acknowledgements (such as the RDT 2.0 protocol that we covered before). Is it possible for an acknowledgement to be contaminated in any way? What process has been put in place to deal with this situation?
Keep in mind that during the transit phase of the TCP/IP protocol suite, packet reordering and reassembly take place. An abstraction layer underneath the Internet or data layer is where a firewall may operate. An out-of-order or wiped traffic stream will be impossible for a stateful inspection firewall to collect any information about.
Both UDP and TCP use port numbers to identify the destination entity when delivering a message. Give two reasons for why these protocols invented a new abstract ID (port numbers), instead of using process IDs, which already existed when these protocols were designed.
Two considerations drive the use of layered protocols.