Enterprise WLAN Design: A Case Study for ABC Institute of Technology

This report outlines a Wireless Local Area Network (WLAN) design for ABC Institute of Technology, which has two campuses located two kilometers apart in Canberra. The first campus comprises four buildings housing the chemistry, IT, and physics colleges, along with a library, while the second campus includes the administration block, a library, the school of business, and the administration office. With over 1200 users, including 250 administration staff and 1310 students, the proposed WLAN must meet current IT standards, providing a minimum of 150Mb/s with 95% availability. The design incorporates VLANs for security, portal authentication, and an extended service set topology. The report details IP address assignments, hardware specifications such as TP-Link TL-WA901ND access points and Cisco distribution switches, and considerations for indoor and outdoor links. It also addresses security challenges associated with broadcast WLANs and suggests measures to prevent unauthorized access, referencing several IEEE publications on WLAN security and interworking architectures.

DESIGN A WLAN FOR AN ENTERPRISE
(Student’s Name)
(Professor’s Name)
(Course Title)
(Date of Submission)

Introduction
 ABC is an institute technology that has recently re-located
to Canberra want to install the latest Wireless technology.
 The school have two campuses which are located in
Canberra and are two kilometers apart.
 The 1st campus is a four building with three colleges
which are chemistry, IT, and physics. The campus has a
library also. The 2nd block is the administration block with
a library, school of business, and the administration office.
 The institution has over 1200 users where 250 is the
administration staff and the students are 1310.

Proposal description of
requirements
 The wireless access point have to be compliant with
the current IT standards
 All the institution access points will have the
capability of providing not less that 150Mb/s
 The availability of all the access points will be 95
percent for 24 hours period
 All wireless Access Points ought to be configured to
deny unauthorized mobile devices do not connect
into the network [1]

Network Design analysis
Server
Manageable
switch
Manageable
switch
Manageable
switch
Manageable
switch
Server
Manageable
switch
Manageable
switch
Manageable
switch
Manageable
switch

The use of broadcast WLAN in most cases
is always a challenge
For ABC’s case, VLAN for the two
building.
Type of authentication: portal
authentication [3]
Security of the WLAN

IP address design
Building VLAN Internet
Protocol
Gateway Floor Number of
Access
Points
Administration
building
102 192.168.101.0 192.168.101.254 1 4
2 4
3 4
4 4
The 2nd building 101 192.168.101.0 192.168.102.254 1 4
2 4
3 4
4 4

 Extended service set is suitable for this case as
shown figure 1
Network Topology

Considerations when selecting links:
 whether the AP are to be indoor or outdoor
 The way of installation
 Power supply whether it will be a passive
PoE or standard PoE
 Number of users in each building.
Desired types of Links

A 450 Mbs TP link of model TL-
WA901ND
Features:
 bring a smooth wireless N
 supports several operating modes
 supports a coverage of 100 feet
 Can be powered using an Ethernet cable [4]
Indoor Links

 A 9dBi Outdoor CPE
 Features:
 modifiable transmission power from zero to
28dBm/500mw
 Transmit signals for over 5 kilometer plus data
transmission
 uses Maxtream TDMA technology
Outdoor Link

Hardware and software
analysis
Hardware Specifications
TL-AP1750C-PoE Wall mounting
2.4 Ghz frequency band: 450Mbps
5GHz Frequency Band 1300Mps
Power consumption is 15.31
Distribution Switch Cisco
16 RJ45 ports and support PoE, the basic software
specification are V;AN isolation, and standard
switching
Firewall WatchGuard
TL-SG5428 core switch 5 RJ45 ports, SSIF broadcast supported, isolation
between the wireless networks, VLAN settings which
support Tag VLAN binding, and support SSID
Factory reset is supported by the switch
Back-up and import configuration supported [8]
Software upgrade support

References
 [1]G. M. &. H. Koien, "Security aspects of 3G-WLAN interworking,"
IEEE Communications Magazine, vol. II, no. 3, pp. 82-88, 2006.
 [2] Park, "WLAN security: current and future," IEEE Internet
Computing, vol. II, no. 1, pp. 60-65, 2007.
 [3] Buddhikot, "Design and implementation of a WLAN/CDMA2000
interworking architecture," IEEE Communications Journal, vol. II, no.
4, pp. 90-100, 2010.
 [4] Bahri, "On the wireless local area network design problem with
performance guarantees," vol. II, no. 2, pp. 856-866, 2013
 [5] TP-Link, "450Mbps Wireless N Access Point," TP-Link, 2018.
[Online]. Available: https://www.tp-link.com/uk/products/details/cat-
12_TL-WA901ND.html. [Accessed 28th September 2018].