Network Design and Implementation for GT7 Real Estate

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INTERNET ENGINEERING
- ASSIGNMENT ONE
STUDENT NAME: PRAMOD MEDA
STUDENT ID: 23112742
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Contents
INTRODUCTION...................................................................................................................................3
LOGICAL NETWORK DESIGN................................................................................................................4
VIRTUAL NETWORK IMPLEMENTATION..............................................................................................6
HOST INSTALLATION............................................................................................................................7
CONFIGURATION.................................................................................................................................9
ACTIVE DIRECTORY DOMAIN SERVICES INSTALLATION.....................................................................10
ADDING A PC TO THE DOMAIN..........................................................................................................15
DNS CONFIGURATION........................................................................................................................17
DYNAMIC HOST CONFIGURATION PROTOCOL...................................................................................18
ACTIVE DIRECTORY AND CONFIGURATION ON BRISBANE SERVER....................................................20
CONCLUSION.....................................................................................................................................26
REFERENCES......................................................................................................................................27
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INTRODUCTION
The current network design and test solution implementation case study is fixated on GT7, a private
business in the real estate market. The company has a headquarter on the Gold Coast and a small office
in Brisbane. Driven by rapid growth and clients serviced, the company is proposing a redesign of the
network in order to implement up-to-date services and support future growth within a minimum of five
years.
To achieve a secure and reliable infrastructure, each aspect of the identified requirements for design will
be reviewed with detailed solutions. The results of the preliminary design stage will be used to configure
and test other network services. The outputs of verification from different devices will be attached to
the different sections in order to strengthen the understanding of the proposed solution.
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TASK 1
LOGICAL NETWORK DESIGN
The company has a flat structure with users and servers at each location. Designing the network for each
office location comprises of different components. The first involves cumulating the total number of
devices requiring IP addresses. IP addressing uniquely identifies each host on the network and enables
communication and routing between the different networks. Using the IP allocation information
provided information we can proceed to subnet the given range where required or use the entire IP
addresses to configure network devices. The number of users at the headquarter office has 10x
employees with 10 servers while the small office has 6x employees with 3 servers where x is equal to 4
from which we have 104 employees and 64 employees at HQ and small office. Each employee has a PC
and a phone. This brings the total number of devices requiring an IP address at each location to 228 and
131. Based on the information provided, the range 172.1x.yx.0/24 will account for addressing needs of
the Gold Coast office. Replacing the numeric values for X and y as requested results in 172.14.24.0/24.
At the branch office, the range is 192.1y.yx.0/24, inputting the numeric values for x and y yields:
192.12.24.0/24. The addressing allocation table becomes
Gold Coast head
office
TOTAL IP ADDRESSES REQUIRED
Number of
employees
104
218
Each employee
has
01 PC + 01 IP Phone (each employee
requires 2 IP addresses) total is 208
The department
has
10servers (including File, Email, Print,
DNS, DHCP, domain controller,
Sharepoint..)
Brisbane office
Number of
employees
64
131
Each employee
has
01 PC + 01 IP Phone (total is 128)
The department
has
3 servers( Domain controller, DNS,
application server)
The IP addressing allocation for the networks at both location becomes:
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Gold Coast Head
Office
IP address range 172.14.24.0
Subnet Mask 255.255.255.0 or /24
Host Range 172.14.24.1 - 172.14.24.254
Gateway 172.14.24.1
Broadcast Address 172.14.24.255
Servers IP address allocation
172.14.24.2
172.14.24.3
172.14.24.4
172.14.24.5
172.14.24.6
172.14.24.7
172.14.24.8
172.14.24.9
172.14.24.10
172.14.24.11
Brisbane Office
IP address range 192.12.24.0
Subnet Mask 255.255.255.0 or /24
Host Range 192.12.24.1 - 192.12.24.255
Gateway 192.12.24.1
Broadcast Address 192.12.24.255
Servers IP address allocation
192.12.24.2
192.12.24.3
192.12.24.4
LOGICAL DIAGRAM
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TASK 2 PART A
VIRTUAL NETWORK IMPLEMENTATION
Virtualization is a cost-effective solution for creating virtualized replicas of physical devices through the
use of virtualisation software. Virtualization can be applied to create an operating system, hardware and
server virtualization. It emulates the hardware devices through the use of software thus enabling
multiple virtual devices to run on a single hardware. A virtualized device is referred to as a virtual
machine. Virtual machine files are stored on the host devices and can easily be transferred between
different host computers.
The core component that enables virtualization is the hypervisor. There are two types: a type 1 and a
type-2. A type 1 hypervisor runs directly on the hardware and abstracts the host computing resources
for the virtual machines. The type-1 hypervisor acts as the operating system on the hot device. A Type-2
hypervisor is a software installed on a host operating system and is managed by the host operating
system. Beyond the type of hypervisor, there are open source hypervisors and paid products. For simple
testing scenarios, a free solution is ideal when the required features are contained in the product. A
major factor to consider is support for a varied range of operating systems. There are also hypervisors
that only run on Linux operating systems which can only be managed by experienced UNIX
administrators. For windows, operating system Vmware player and oracle VirtualBox are the best choice
for type-2 hypervisors. The choice of Virtualbox for this implementation is driven by the open-source
classification of the software and the OS support available. While Vmware player is free there are
certain features that are only available in the paid version of the software. No restrictions exist with
VirtualBox and it has a simple user interface for ease of usage. It also supports the type of host for the
proposed network infrastructure.
Virtualbox is installed on the host OS and can be used to create different operating systems by providing
the installation disk or image files. Virtual machines files can be imported into another host and used
eliminating the need for multiple installations. Virtualbox connects to the hardware devices connected
to the host, for example, USB, disc drives, network drives and storage devices. After creating a virtual
machine we can connect the multiple hosts together by creating virtual local area networks between
two or more virtual machines. By adopting this tool we can test the network topology and connect to
devices in the same manner as physical computers.
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Figure 1: Oracle VirtualBox user interface
HOST INSTALLATION
The desired host machines for the current setup are windows server 2012 and windows 8. The operating
system installation images are stored on the host computer. In the VirtualBox window, navigating to the
machine menu options reveals the new option. Clicking this enables the creation of a new virtual
machine. The process has a number of steps beginning with the virtual machine name, operating system
version, memory (RAM), and selection of HDD size. After creating the OS we can edit the virtual machine
properties before booting up the OS. When the installation process begins, selecting a top menu option
enables the addition of the OS image file and the process proceeds with the OS installation in the same
manner as installing on a physical PC or server. The screenshots represent the post-installation of
operating systems on VirtualBox.
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Figure 2: Windows Server login Screen
Figure 3: Windows PC
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Figure 4: Virtualbox user interface
CONFIGURATION
The next steps after installing the PC and server operating systems is the configuration of a domain
controller on the HQ server and adding a PC to the domain. Other services for the HQ network are DHCP
and DNS. The steps and screenshots will be documented with test to verify functionality of the services.
To configure the HQ server as a domain controller requires the installation of the active directory
domain service. From the server manager window navigate to the “Add Roles and features link” and
click.
Figure 5: Server manager interface
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ACTIVE DIRECTORY DOMAIN SERVICES INSTALLATION
Clicking next to continue the installation and selecting the default role-based or feature installation
option, clicking next on the configuration and selecting the local server for installation. The final step is
the installation of the role.
After the installation of the role, I closed the screen and returned to the server manager window and the
role is displayed in the left window of the screen.
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The next steps are the post-installation configuration of the active directory domain role. The final
configuration promotes the server to a domain controller. Before promoting the device static IP
addressing information for the server is entered.
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