PFE2

Study and implementation of a corporate Wi-Fi network solution

Presented By :

Amine BEN MESSAOUD AND Omar KAMOUN

Presented to obtain

The Bachelor’s degree in Science and Technology

Defended on July 13th 2020 in front of Jury composed of :

President: Mr. Saber Dakhli

Reviewer: Mrs. Rim Ouertani

Professional advisor: Mr. Aymen Khelifi

Academic advisor: Mrs. Rim Bouhouch

2019/2020

History

Since 1971 till today WIFI noticed a great improvement in many levels

hardware wise standards wise and also signal wise.

Current situation

Most corporations don't have an issue with Wifi networks :

• Don't invest in them

• Rely mostly on Lan

• Networks are not updated

Project context

With over 6.8 billion devices WI-FI connected around the world

WI-FI networks are getting more popular as years go by.

With this in mind we were welcomed to FOCUS IT.

Taking the network form good to great

Presentation

• Focus is an IT (Information Technology) Outsourcing company

• Founded in 2003

• It delivers an outsourcing software and IT solutions based on advanced technical skills, IT expertise, and strong commitment to quality assurance.

FTS

• Focus Technology Solutions

• A section of FOCUS group specialized in system integration and IT solutions.

Services

• Application Services

• IT Services

Placement

• Low signal strength

• Poor performance

• Intermittent connectivity

Number of devices

• Too many devices connected

to the same network.

• Bandwidth divided between all

the devices.

Run out of bandwidth.

Interference

• Many environmental facts

can affect transmission

• The wall is the most

common obstacle that

weakens the signal

• Frequency Interference

Losing Connection

• Access points don't

cover the whole places

• Employees lose connectivity

while moving in different parts

of the company

• Problem in several fields

of applications

Security

• Security discourages

several people for

deploying wireless networks

• Anyone within range can

connect and use the network

for harmful purposes

APs Locations

• Precise access point placement is key

• Avoid coverage overlap whenever possible

• Wireless interference planning

Frequency Choose

2.4GHz

+ WiFi network coverage

5GHz

+ Device compatibility

+ WiFi network speed

+ Co-channel interference

Roaming

• Changing access points

without losing its network

connectivity

• Helps wireless clients with

a weak signal to connect to the

nearest access point with

stronger signal

QoS

• Quality of Service

• Giving priority to certain applications or certain devices.

• Makes network performance more predictable and bandwidth utilization more effective.

Security

• Securing Wi-Fi connections

=

Securing personal data

• Security features of Wi-Fi

Protected Access constantly evolve

• Stronger protections and new security

practices

Access points placement

What to take into consideration:

• Having no dead-zones

• Having a good signal in dense

working spaces

• Not placing the AP in an environment that blocks the WI-FI signal

Making the

Addressing plan

• We chose a Class A address

• 3 VLANS :

• VLAN 10:APs
• VLAN 40:Employees
• VLAN 50:Guest

Architecture of the prototype

Configuration

• Basic configuration from console

• Configuration from Graphical User Interface

Security

Cisco Identity Services Engine (ISE)

-Asset visibility

-Network segmentation

-Threat containment

-Guest and secure wireless access

-BOYD(Bring Your Own Device)

Roaming

test

Perspective

The implementation of the prototype solution

in the new FOCUS building in Lac 1

Adapting it to the new building s environment

Running more test security wise and signal wise