This assessment item relates to the unit learning outcomes as in the unit descriptors.L01: Identify the operation of the protocols that are used inside the Internet and use the seven-layer model to...

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Date: 5/11/2020
Table of Contents
1.    Task -1    3
2.    Introduction    3
3.    Hardware requirement analysis    3
4.    Assumed department and possible IP solution    5
5.    Proposed network design for ABC Consulting    7
6.    Task - 2    8
7.    TCP/IP model and its protocols    8
8.    Task - 3    9
9.    Security threats and vulnerabilities to TCP/IP model layers    9
10.    Solution to security threats and vulnerabilities in TCP/IP model    11
11.    Conclusion    11
12.    References:    13
1. Task -1
2. Introduction
The proper network design and related capabilities are the most common requirements of modern organization like the ABC Consulting Private Limited. The development of possible network will help in effective communication among the working departments of this organization. The possible vulnerabilities to the implemented network can also be identified. The complete network design will make identification of required devices in physical implementation of LAN solution to this company. The identification of required hardware devices will be based on the requirement analysis provided by this company. The proper selection of hardware devices is very essential. As, the complete implementation cost of new network will be based on the selected hardware devices. The implementation of network design will also provide a proper solution to IP plan. Each organization like this ABC Consulting requires proper IP plan and wants to minimize the IP wastage. The IP plan for all the departments will also be developed on bases of developed network design. The protocols plays important role in development of required network. The selected TCP/IP model contains different protocols for all its layers. The proper communication and data flow is defined with these selected protocols. The vulnerability analysis for the selected protocols is also possible through including them in the actual network implementation.
3. Hardware requirement analysis
The complete implementation of any network is always based on the provided hardware requirements by the client organization. Each client has different requirements for the hardware devices. As ABC Consulting Private Limited is a small size organizations and working with five different departments, thus, following hardware requirements are identified and provided in below table with manufacturer name, cost and specifications:
    Sr. No.
    Device name
    Manufacturer
    Cost
    Specifications
    1
    Router
    SPA 122 from CISCO
    $159
    Fill fulfill the routing requirements of this organization.
    2
    Switch
    Catalyst 2960 with 24 ports from Cisco
    $169
    Fill fulfill the switching requirements of this organization.
    3
    Hub
    Echo Dot from Amazon
    $69
    Smart device connectivity to network will be assured with it.
    4
    WAP
    ROG Rapture from ASUS
    $399
    The wireless network implementation to ABC Consulting will be assured with it.
    5
    Firewall
    ProSafe FVS336G from Netgear
    $599
    The security requirements of ABC Consulting will be assured with it.
    6
    PC
    OptiPlex 3050 from dell
    $250
    This is the end device required by the employees of this ABC Consulting.
The above presented hardware requirement is identified for the client ABC Consulting. All the selected devices are from the repudiated manufactures and are maintaining high capabilities which can easily fulfill the required network implementation requirements.
4. Assumed department and possible IP solution
The implementation of any network is not completed until the required IP plan for the client organization is developed. The implementation of IP plan is based on the provided requirements by the client organization. As ABC Consulting is not providing any list of working departments thus, I have assumed five departments for this organization. The possible IP plan and required solution for connectivity assurance to these departments is provided in below table:
    Department name
    IP address
    Subnet mask
    Mask Bit
    Allocated hosts
    Host address range
    Broadcast address
    Sales department
    120.120.0.0
    255.255.255.192
    /26
    62
    120.120.0.1 -...