Table 1 Department/Purpose Location Employees/Devices Subnet Management Alpha Building, Floor 4 22 10.1.0.0/16 Sales Alpha Building, Floor 1 100 10.2.0.0/16 Marketing Alpha Building, Floors 40 10.2.0.0/16 1 and 2 Legal Alpha Building, Floor 2 23 10.2.0.0/16 Finance Alpha Building, Floor 2 37 10.2.0.0/16 Software Development Alpha Building, Floor 2 70 10.2.0.0/16 0 and 3 Product Testing Alpha Building, Floor 3 30 10.2.0.0/16 Hotdesking Area Alpha Building, Floor 4 20 10.1.0.0/16 Servers Alpha Building, Floor 4 6 10.3.0.0/16 Distribution Beta Building, Floor 1 10 10.4.0.0/16 Admin Beta Building, Floor 1 20 10.4.0.0/16 IT Support Beta Building, Floor 1 10 10.4.0.0/16 Wi-Fi Beta Building, Floor 1 10.4.0.0/16 Rented floor Beta Building, Floor 2 20 20 10.255.0.0 /16 Ursa Minor Alpha Ursa Minor Beta Servers Floors 1-3 Floor 4 Figure 1 Parking Floor 1 ISP Wi-Fi Access Point Rented Floor
Megadodo Publications
Megadodo Publications is a company located in the outskirts of Warwick. After a period
of rapid expansion, they now occupy two buildings (Ursa Major Alpha and Ursa Minor
Beta) located around 80 meters apart in a piece of land owned by the organisation.
Despite investing in new and powerful networking equipment their computer network
(set by some computer technicians with little networking knowledge) is currently
performing poorly. In addition, during the last year they have experienced multiple
security related incidents resulting in sensitive information leaking into the public
domain. Resolving this situation is becoming rather urgent since currently they are
negotiating a rather important government contract. As such, the president of the
company has contacted you asking for a proposal regarding how the problems they are
currently experiencing could be resolved. Amongst other documents he has provided,
there are a network topology diagram (see figure 1), their addressing scheme (see Table
1), a list of equipment and a copy of the existing security policy (not included, but
imagine this document was provided and you went through it). In addition to the
information provided you have been invited to visit the company and study/investigate
the problems they are having.
Check figure 1(in the attached piccture)
From the documentation provided you can derive that a stack of switches (3 x 128 port
switches) provides connectivity for all departments located in first 3 floors of the Alpha
building (about 120 desks per floor). The fourth floor of the alpha building is employing
two switches (2 x 24 port switches), one for the management department and one of for
a hotdesking area for contractors and guests. The Beta Building has only two floors, only
one of which is used by the company (3x24 port switches). The second floor is rented to
a small start-up company with around 20 employees.
The company departments and addressing scheme is as follows: check table 1 for attached picture
Other information is available on request. Upon completing your investigation, the
company president expects you to make a series of recommendations as to how their
current network infrastructure could be improved. He has also informed you that IT has
a small amount (about 8000 pounds) leftover in their budget, which you could possibly
use if you deem necessary.
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