Private Biomedical Software Development Company Network Report

This report details the network design and implementation for a private biomedical software development company with three branches. The report focuses on establishing a local area network (LAN) structure that integrates into a wide area network (WAN). It covers the design of both logical and physical network layouts, including the allocation of IP addresses for both IPv4 and IPv6 address spaces. The student has provided detailed IP address plans for each subnet, including the headquarter and two branch locations, specifying network devices, router interfaces, and subnetting calculations. The report also includes network diagrams, assumptions about business activities, and considerations for future growth, such as website development and online payment integration. Furthermore, the report includes complete diagrams with IP address subnetting, and also covers the key devices IP addresses in each branch and headquarter.

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Data communication and network in biomedical software Development
Company
Author: [Full name]
Date: 8/12/2018

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Summary
This report is about the software development company called the private biomedical
software development company and is located in gold coast region.
There are three main branches namely A,B and headquarter where they are configured to
make a local area networks that are then connected to each other to form a wide area network.
The management had decided to implement a new network and network address plan for the
entire company branches, the proposed network is meant to enhance communication, sharing
of resources, easy data manipulation and quick analysis to enhance quick and effective
decision making.
The report had therefore highlighted the process of logical and physical network
implementation, the drawing of the network layout and indication of the various network
devices ip addresses and the routers interface addresses, however the entire network address
plan for both IPV4 and IPV6 address space are covered.
Table of Content

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s
1. Introduction.......................................................................................................................................4
1.1. Purpose..................................................................................................................................4
1.2. Background............................................................................................................................4
1.3. Scope.....................................................................................................................................4
2. Organisational Description................................................................................................................5
2.1. Assumptions...............................................................................................................................5
2.2. Business activities.......................................................................................................................5
2.3. Future growth.............................................................................................................................5
3. Address allocation plan for each subnet............................................................................................5
3.1 IP addressing plan for IP V4.........................................................................................................5
3.1.1 IPv4 allocation plan for Head Quarter..................................................................................6
3.1.2 IPv4 allocation plan for Branch A..........................................................................................7
3.1.3 IPv4 allocation plan for Branch B..........................................................................................8
3.2 IP addressing plan for IP V6.......................................................................................................10
3.2.1 IPv6 allocation plan for Head Quarter................................................................................10
3.2.2 IPv6 allocation plan for branch A........................................................................................11
3.2.3 IPv6 allocation plan for branch B........................................................................................12
4. Complete Diagram including IP address subnetting........................................................................13
4. Conclusions......................................................................................................................................14
Reference............................................................................................................................................15
Appendices..........................................................................................................................................16
Appendix A: Head quarter branch...................................................................................................16
Appendix B: Branch A......................................................................................................................16
Appendix C: Branch B......................................................................................................................17

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1. Introduction
1.1. Purpose
The purpose of this report is designing physical and logical designs of the local area network,
the network IP address plan preparations, and creation of the three local area networks to
make a wide area network of the private biomedical software Development Company.
1.2. Background
This company deals with the development of the software applications and it is distributed
across three branches and therefore the management team had decided to implement a new IP
address plan which will be optimized and able to expand in future, the IP address plan will
utilize the IPV4 and IPV6 IP address spaces as indicated below (William, 2014).
i. IPv4_Network: 191.2.XY.0
ii. IPv6_Network: 2001:1234: ABCD: XY00:: /56
In this case the XY are the student’s ID number last two digits which are obtained from the
last three digits as 196, below are the representation of the IPV4 and IPV6 IP address spaces.
i. IPv4_Network: 191.2.19.0
ii. IPv6_Network: 2001:1234: ABCD: 1900:: /56
1.3. Scope
In this report there is wide scope of the areas to be covered which includes:
i. Preparation of each sub-network’s IP addresses requirements.
ii. Preparation of each sub-network’s IP address allocation plans for both IPV4 and IPV6
IP address spaces.
iii. Preparation of the key network devices and interfaces IPV4 and IPV6 IP address
allocation plans.
2. Organisational Description
2.1. Assumptions.
During the designing of the proposed network below are the assumptions made.
i. There are different IP address spaces for each sub-network.

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ii. Each network devices is assigned unique IP address.
iii. For every sub-network there is a router that connects to other subnets.
iv. There are database and DHCP servers in each subnet for data storage and IP address
allocation.
v. Each network has several computers for programmers use.
vi. Each subnet is connected with printer for document printing.
2.2. Business activities
Below are the various business activities in the company operations.
i. Customer ordering for software design service.
ii. Company developers developing the ordered software for customer (Tom, 2015).
iii. The company developer test and deploy software to customers.
iv. The accountant in company prepares and sends to the customer the payment invoice.
v. Customer making the charged amount as per the invoice.
vi. Company development team offer support services to customers.
2.3. Future growth.
As the time moves on the company will grow due to increased number of customers as a
result of offering good services to the clients and below are some of future growth expected.
i. Development of company website for online customer relations and advertisements
(Forouzan, 2014).
ii. Introduction of the banks cards and online payments mode services.
3. Address allocation plan for each subnet
3.1 IP addressing plan for IP V4
There are A, B and the headquarter subnets where A has 19 devices, B has 16 devices and
Headquarter has 196 devices.
Below is the IPV4 IP address space to be used in these subnets.
IPv4_Nnetwork: 191.2.19.0
3.1.1 IPv4 allocation plan for Head Quarter
There are 196 devices in headquarter and below is the calculation of the IP address
requirement.

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Network devices = 196.
Required IP-address= 196+2=198.
Subnet-mask=32-n.
Where 2^n-2>198
2^8-2>198
256-2>198
254>198
The subnet-mask=32-8= /24.
Subnet-mask address =255.255.255.0
Network-address = 191.2.19.0
Broadcast IP-address= 191.2.19.255
Default gateway address= 191.2.19.1
Valid host IP address range = 191.2.19.0-191.2.19.254
i. IP addresses plans table.
Network-address Subnet-mask Broadcast-address Default gateway address Valid host address range
191.2.19.0 255.255.255.0 191.2.19.255 191.2.19.1 191.2.19.0-191.2.19.254
ii. The Key devices IP-addresses.
Device’s name IP address
Router 191.2.19.1
DHCP server 191.2.19.2
Printer 191.2.19.3
iii. Router interfaces IP addresses.
Router-name Router-Interface IP-address

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Headquarter Router FA 0/0 191.2.19.1
Se 1/1 191.6.19.2
Se 1/2 191.7.19.1
3.1.2 IPv4 allocation plan for Branch A
There are 19 devices in headquarter and below is the calculation of the IP address
requirement.
Network devices= 19.
Required ip addresses= 19+2=21.
Subnet mask=32-n.
Where 2^n-2>21
2^5-2>21
32-2>21
30>21
Subnet-mask=32-5=/27
Subnet mask-address =255.255.255.224
Network-address = 191.3.19.0
Broadcast IP-address= 191.3.19.31
Default gateway-address= 191.3.19.1
Valid host IP address-range = 191.3.19.1-191.3.19.30
iv. The IP addresses plans table.
Network-address Subnet-mask Broadcast-address Default gateway-address Valid host address-range

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191.3.19.0 255.255.255.224 191.3.19.255 191.3.19.1 191.3.19.0-191.3.19.254
v. The key devices IP-addresses.
Device name IP address
Routers 191.3.19.1
DHCP-server 191.3.19.2
Printers 191.3.19.3
vi. Router’s interfaces IP-addresses.
Router name Router Interface IP address
Branch-A router FA 0/0 191.3.19.1
Se 1/0 191.5.19.1
Se 1/1 191.6.19.1
3.1.3 IPv4 allocation plan for Branch B
There are 16 devices in headquarter and below is the calculation of the IP address
requirement.
Network devices= 16.
Required IP-addresses= 16+2=18.
Subnet-mask=32-n.
Where 2^n-2>18
2^5-2>18
32-2>18
30>18
Subnet-mask=32-5= /27.

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Subnet mask-address =255.255.255.224
Network-address = 191.4.19.0
Broadcast IP-address= 191.4.19.31
Default gateway-address= 191.4.19.1
Valid host IP address-range = 191.4.19.1-191.4.19.30
i. The IP addresses plans table.
Network-address Subnet-mask Broadcast-address Default gateway-address Valid host address-range
191.4.19.0 255.255.255.224 191.4.19.255 191.4.19.1 191.4.19.0-191.4.19.254
ii. The Key devices IP-addresses.
Device name IP address
Router’s 191.4.19.1
DHCP-server 191.4.19.2
Printer’s 191.4.19.3
iii. Router’s interfaces IP-addresses.
Router name Router Interface IP address
Branch B router FA 0/0 191.4.19.1
Se 1/0 191.5.19.2
Se 1/2 191.7.19.2
3.2 IP addressing plan for IP V6
There are A, B and the headquarter subnets where A has 19 devices, B has 16 devices and
Headquarter has 196 devices.
Below is the IPV6 IP address space to be used in these subnets (Douglas, 2018).
IPv6_Network: 2001:1234: ABCD: 1900:: /56

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The IPV6 require to be implemented for three subnets including the A,B and the headquarter
sub-networks and the IP address space is calculated as follows.
i. No of subnets=3.
ii. Subnet’s Prefix-length =56+2=58.
iii. Sub network bits 2^n>=3 ,where n=2.
iv. No of subnets =4.
v. Form hex table we obtain 0, 4, 8, and c as hex values after incrementing by 4.
vi. Below are subnets IPV6 address spaces.
a. Headquarter: 2001:1234: ABCD: 1900:: /58
b. Branch A: 2001:1234: ABCD: 1940:: /58
c. Branch B: 2001:1234: ABCD: 1980:: /58
3.2.1 IPv6 allocation plan for Head Quarter
In this subnets there are 196 devices and below show the calculations of the IP address
requirement.
No of Network devices= 196.
Required IP address= 196+2=198.
Network address: 2001:1234: ABCD: 1900:: /58
Subnet-mask prefix: /58.
IP address-range: 2001:1234: abcd: 1800:0-2001:1234: abcd: 193f: ffff
i. IP address plan.
IP subnets and subnet’s Prefix Network-address Default Gateway-address
2001:1234: ABCD: 1900:: /58 2001:1234: ABCD: 1900:: 0000 2001:1234: ABCD: 1900:: 1
ii. Key devices IP addresses.
Devices names IP addresses
Routers 2001:1234: ABCD: 1900:: 1
DHCP-server 2001:1234: ABCD: 1900:: 2
Printer 2001:1234: ABCD: 1900:: 3

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3.2.2 IPv6 allocation plan for branch A
In this subnets there are 19 devices and below show the calculations of the IP address
requirement.
No of Network devices= 19.
Required IP address= 19+2=21.
Network address: 2001:1234: ABCD: 1940:: /58
Subnet-mask prefix: /58.
IP address-range: 2001:1234: abcd: 1940:0-2001:1234: abcd: 197f: ffff
i. IP addresses plans.
IP subnets and subnet’s Prefix Network-address Default Gateway-address
2001:1234: ABCD: 1940:: /58 2001:1234: ABCD: 1940:: 0000 2001:1234: ABCD: 1940:: 1
ii. Key devices IP addresses.
Device name Ip address
Router 2001:1234: ABCD: 1940:: 1
DHCP server 2001:1234: ABCD: 1940:: 2
Printer 2001:1234: ABCD: 1940:: 3
3.2.3 IPv6 allocation plan for branch B
In this subnets there are 16 devices and below show the calculations of the IP address
requirement.
No of Network devices= 16.
Required IP address= 16+2=18.
Network address: 2001:1234: ABCD: 1980:: /58

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Subnet-mask prefix: /58.
IP address-range: 2001:1234: abcd: 1980:0-2001:1234: abcd: 19bf: ffff
i. IP addresses plans.
IP subnets and subnet’s Prefix Network-address Default Gateway-address
2001:1234: ABCD: 1980:: /58 2001:1234: ABCD: 1980:: 0000 2001:1234: ABCD: 1980:: 1
ii. Key devices IP addresses.
Devices names IP addresses
Routers 2001:1234: ABCD: 1980:: 1
DHCP servers 2001:1234: ABCD: 1980:: 2
Printers 2001:1234: ABCD: 1980:: 3
(Behrouz, 2018).