Question

In this assessment you are required to design a wireless campus network for Faber University. This assessment is group assessment and you may work in groups of upto 4 students. To design the wireless campus network for the university you are required to conduct a requirement analysis, propose a design of the network considering the university requirements, carry out a security analysis and propose a WLAN monitoring tool for monitoring the network in the future. The network needs to be designed with an industry tool for example packet tracer, GNS3 etc. The assessment will help in developing an understanding of communication in wireless networks, the security issues and the limitations and challenges. Faber University has recently been experiencing a decreasing level of enrolment. Faber was built in the early 1900s, and until ten years ago, was known as one of the finest centres for higher education on the eastern seaboard. In the last ten years, however, enrolment seemed to plateau and then slowly decline. Faber's Chancellor Jennings has hired a polling agency and formed an action committee composed of faculty, students, and administration to determine the causes of the university's decline in enrolment. The polling agency surveys the graduating seniors and reports that the emerging needs of students are not being met. The new generation of student that the university wants to attract is the technically elite who are known as early technology acceptors. Faber's rich history and, consequently, its old network architecture and lack of technical infrastructure, security and privacy, are its downfall in this new, technological environment. The university has different areas and buildings, the Administration department, the Athletic department, the Engineering department, the Biological Sciences department, the Liberal Arts department, the Student Union, Residential halls, Sports complex, Lake and Park. The campus is spread over large land and each building and open space is 200 meters apart. All the buildings have multiple floors and the current enrolment of students is 5000, there are 50 staff members and guests also visit the campus. As IT students your group has been assigned to design the wireless network. The following process needs to be followed to design a secure wireless campus network that meets the university requirements.

• Requirement Analysis

• Wireless Network Design

• Security Analysis

• Maintenance and Troubleshooting

Answer 1

1.Requirement Analysis: It includes:

a. Application: The wireless network should support user applications such as web browser,email and transfer etc

b. Environment: Need to get description of the environment where the wireless network will operate. For building include floor plan,type of connection and possible locations and for outdoor areas include satellite images,aerial photographs etc

c. End users: Be sure to identify whether users are mobile or stationary which provides a basis for incuding enhanced roaming in the device.

d .Funding : Its how much money is available .If funding is known then we will know how much there is to work with when designing a system.

2.Wireless network design:

we should have the following components:

a. Sensor or Motes(field devices) : These control the process or process equipment ,helps in routing packets on behalf of other devices.

b.Gateway or Access point:  It allows communication between host applicaton and field devices.

c.Network manager: Responsible for configuration of the network,scheduling communication between devices and overall reporting the health of the network.

3. Seurity Analysis: It includes-

a. Denial of service: It eliminates network capacity to perform.

b.Sybil attack: This type is seen in peer to peer networks in which anode in the network operates multiple identities actively at the same time.

c.selective forwarding: It may refuse to forward certain messages and simply drop them.

d.Wormhole: Attacker records packets at one location in the network,tunnels them to another location.

4.Maintenance and trouble shooting; It has debug and show command

In show command we use:

a.show running-config : Display WLC configuration

b.show ap summary: displays access points currently registered also used for trouble shooting

c.show WLAN summary: Displays what WLANS are currently configured and what their current status are.

d.show sysinfo: Displays lot of status information regardng health of the WLC

In case of debug command:

a.<debug ap <ap-name>: sends remote command to a specific AP

b.dot11 enable: enables WLC messages related to 802.11 operations.

c. aaa: enables WLC messages related to authentication etc