Network Security and Design for ALM.co.uk

Running head: NETWORK SECURITY AND DESIGN
Network Security and Design
Name of the Student
Name of the University
Author Note

NETWORK SECURITY AND DESIGN1
Summary
Designing networks and configuring them plays a critical part in ensuring how effective and
efficient the network implementation can be in companies. The report proposes a configured
network design for the business alm.co.uk and attempts to meet the requirements of the
network. First the report presents a summary of these requirements put forward by ALM
where details regarding the arrangement and count of the devices based on the specific
departments that are to be served by the network are given. The report then presents the
network design with the help of a network design diagram created in cisco packet tracer and
duly describes the network, the configuration and how the network equipment connects the
devices. Then the report jumps to the subnetting section where the different subnets created
for the different network segments and their respective details such as size requirement,
allocated address space, network and broadcast address, subnet masks CIDR and IP ranges
are mentioned in a tabular format and discussed thereafter. The report then explains how the
VLANs are used in the network by showing all the VLANs created in the network and how
access can be made from one VLAN to another. However the network is to ensure that none
of the four departments are able to access the other departments and hence appropriate access
control list command are used. The report shows the types of access control list commands
that can be used and mentions the one used by the proposed network to impose the required
restrictions. Next the report carries out tests and validates whether the network meets the
different requirements of alm.co.uk and proves the tests a success with the help of
screenshots. Then after talking about the protocols used for network connectivity and
assigning IP addresses to the devices the report ends with conclusions.

NETWORK SECURITY AND DESIGN2
Table of Contents
Introduction................................................................................................................................3
Network Proposal.......................................................................................................................4
Requirements Summary.........................................................................................................4
Network Design.....................................................................................................................5
Subnetting of the network......................................................................................................6
Use of VLANs........................................................................................................................8
Network Segment Restrictions using Access Control List....................................................9
Testing and Validation.........................................................................................................11
Protocols for connecting devices.........................................................................................13
Conclusion................................................................................................................................14
Bibliography.............................................................................................................................16

NETWORK SECURITY AND DESIGN3
Introduction
The impact designing of networks and their configuration have on effectiveness and
efficiency of networks is evident today and hence the report attempts to propose a configured
network design for the business alm.co.uk as per requirements. The report begins by
presenting a summary of these requirements put forward by ALM where details regarding the
arrangement and count of the devices based on the specific departments that are to be served
by the network are given. The report then presents the network design with the help of a
network design diagram created in cisco packet tracer and duly describes the network, the
configuration and how the network equipment connects the devices. Then the report jumps to
the subnetting section where the different subnets created for the different network segments
and their respective details such as size requirement, allocated address space, network and
broadcast address, subnet masks CIDR and IP ranges are mentioned in a tabular format and
discussed thereafter. The report then explains how the VLANs are used in the network by
showing all the VLANs created in the network and how access can be made from one VLAN
to another. However the network is to ensure that none of the four departments are able to
access the other departments and hence appropriate access control list command are used.
The report shows the types of access control list commands that can be used and mentions the
one used by the proposed network to impose the required restrictions. Next the report carries
out tests and validates whether the network meets the different requirements of alm.co.uk and
proves the tests a success with the help of screenshots. Then after talking about the protocols
used for network connectivity and assigning IP addresses to the devices the report ends with
observations in the concluding notes.