Overview of Internetworking for Calasanz School

This article discusses the process of internetworking and its importance in educational institutions. It focuses on the case of Calasanz School and the challenges faced by the institution. The article also highlights the user-centric design concept and the hardware requirements for the project. It concludes with a demonstration of the configurations for the router.

Overview of Internetworking
Student Name:
Tutor Name:
Submission Date:

Project scope
Internetworking refers to the process of connecting a number of networks by deployment of intermediary
devices like gateway and routers. Internetworking ensures that there exists information communication
between networks. This is deployed by use of common internet routing protocol and data communication
media.
Calasanz School wants to develop offices, classes, libraries, classes and the whole of its buildings to IEEE
802.11 wireless technology, beginning from the Kindergarten to its secondary school. This will assist
productivity through students, staff and computer faculty. This project is estimated to be completed within
three months beginning the month of August 2019.
Challenges
The main challenge faced by our client is that, apart from internet, other services are lacking. Note that
internet is not everything. Other services such as DHCP to manage issuance of IP addresses, DNS to resolve
device names to IP addresses, file sharing to allow sharing of softcopy study materials and library
publications. Mailing and messaging for official communication within the Calasanz School is necessary.
User-centric design concept
According to Duggan, user centered design as a technique is imperative since it is presently the best
methodology that is required to design a networking project that is desirable and usable. For Calasanz
School, this is necessary since it is commonly believed that desirability is a primary component to any
successful service. In a user centered design, the frame of processes, environment, user features, workflow
of service or product and tasks are attended to keenly at every stage of design [1].
Note that Wi-Fi access developed at Calasanz School adheres to user driven approach. That is to say, the
network can be managed from a centralized location. In addition, the Wireless access is designed in a
manner that it restricts who accesses what at the point of device registration on the network. This makes it
ease of management since managing students, pupils and toddlers in the kindergarten may be challenging
on control of what they access. This kind of design is user centric.
Project hardware requirements
Device Name Specifications(Manufacturer name, model, series, ports, features)
Router Cisco Router 2900 series, 2 WAN Ports, 4 Gigabit Ports
Switches TL-SF1048 Switch, 48 10/100Mbps RJ45 ports,
Wireless Access-points 300Mbps Wireless N Gigabit Ceiling Mount Access Point
Model: EAP120
Server Dell PowerEdge R440, 16 DDR4 DIMM slots, speed up to 2666MT/s,
OpenManage Integrations
Printer Kyocera Taskalfa, technology Laser Mono MFD, Engine Speed: Up to 55/27,

Resolution: 600 x 600 dpi, DIMM 1GB
PBX
CaT 6 Cable 10 gigabit of data upto 160 feet,Manufacturer: Asteldigicom, Supports
100Base-TX, 1000Base-T
Patch Codes 3m patch codes
Cabinet 42 U cabinet
Firewall Cisco ASA Firewall 500 Series, 2 gigabit port, 1 console port
Carthern and Wilson network project requirements [2]
Justification
The server hardware is required to provide services such as DNS, DHCP, mailing and messaging, and file
sharing and print services. The router is necessary to direct both incoming and outgoing traffic in and out of
our network. Additionally, the router will be used to allow intercommunication between VLANs, that is,
between departments. Switches will be used to extend the network by allowing desktop computers to
access the network. PBX (Private Box Exchange) will be used to control IP telephony within the school. The
firewall will take care of the logical security aspect.
Network design in an appropriate simulation software
Physical Network diagram
A physical network diagram outlines the actual placement of networking devices on a building. It shows the
layout of the building indicating what should be placed where in terms for location. This includes the
arrangement of the hardware components that make up the network i.e. cables, routers, switches,
firewalls, servers etc.
Below is our physical network diagram for Calasanz School;

Daimi, network topology, [3]
Logical diagram
A logical network diagram gives a description of how information flow via a network. It typically gives a
picture of addresses, subnet masks and the VLAN IDs of subnets, and network devices. More so, it
comprises of subnetting, address assignment, switching and routing technologies.
Assuming that the ISP provided IP address is 172.16.110.0/24, Calasanz School network will be subnetted as
below;
Name
Depart
ment
VL
AN
No.
Host
s
Need
ed
Hosts
Availa
ble
Network
Address
Sla
sh
Mask Usable
Range
Broadcast Wildc
ard
Academi
c
10 1400 2046 172.16.10
4.0
/21 255.255.24
8.0
172.16.10
4.1 -
172.16.11
1.254
172.16.11
1.255
0.0.7.
255
IT
Support
20 50 62 172.16.11
2.0
/26 255.255.25
5.192
172.16.11
2.1 -
172.16.11
2.62
172.16.11
2.63
0.0.0.
63
Admin 30 20 30 172.16.11
2.64
/27 255.255.25
5.224
172.16.11
2.65 -
172.16.11
2.94
172.16.11
2.95
0.0.0.
31
Router
Firewall Servers in a DMZone
Primary SwitchHigh School Switch2High School Switch1
PBX

Finance 40 12 14 172.16.11
2.96
/28 255.255.25
5.240
172.16.11
2.97 -
172.16.11
2.110
172.16.11
2.111
0.0.0.
15
Sports 50 10 14 172.16.11
2.112
/28 255.255.25
5.240
172.16.11
2.113 -
172.16.11
2.126
172.16.11
2.127
0.0.0.
15
Human
Resourc
e
60 4 6 172.16.11
2.128
/29 255.255.25
5.248
172.16.11
2.129 -
172.16.11
2.134
172.16.11
2.135
0.0.0.
7
Note that we assume that the number of academic hosts required is 1400. The 1400 consists of high school students,
primary pupils and teachers. Additionally, we assume the number of IT support, admin staff, finance, sports and human
resource is 50, 20, 12, 10 and 4 respectively. We have created these VLANs for the purpose of authorization and access
rights.
Mariño, Network modeling [4]
Outcomes
Our design above has the following outcomes;
i. Print service
With print service, both the students, admin staff and teaching staff are able to sharing printers located at
centralized points. MyQ application will manage print services.

ii. File storage and file sharing
File sharing and storage is an important resource that students and the staff were missing. The service will
enable students to access study materials. On the other hand, the admin staff will use the same logic to
access shared files enabling them to work on a single file in a collective manner.
iii. DNS and Web service
The web service will enable our school to be able display information about itself all over the world. These
will also enable the society know what services are offered by the school.
iv. Mailing and messaging
Mailing serves as the best official form of communication for reasons of referencing. Messaging on the
other hand will be used to send bulk text messages to school stake holders and as form of advertising
informing the targeted individuals of the services offered at the school. Rogers, mailing importance [5].
Limitations
Since our network design for the school is dominated by Wireless access, this kind of medium is not
dependable since it is susceptible to interference by radiation and radio waves causing it to malfunction.
Furthermore, excess availability of internet may lead to misuse by both teachers and students. Some of the
students may device mechanisms of bypassing the set firewall rules hence accessing unauthorized
resources on the network and internet. This will raise both integrity issues and wastage of time. Velte
network implementation challenges [6].
Conclusion
In conclusion, IT services in educational institutions is very important as it does not only avail resources for
students to study but also it avails other services which makes educational processes to be driven in an
efficient manner. Calasanz educational center is not an exception from use of these services. For our
educational center, we have singled out DNS, File and sharing, print, web, mail and messaging services as
the imperative services required by the school stakeholders.
Demonstration (snapshots of ping connectivity is preferable)
Configurations Router
Router#config t
Router(config)#hostname Calasanz_Router
Calasanz_Router(config)#
Calasanz_Router(config)#line console 0
Calasanz_Router(config-line)#password calasanz

Calasanz_Router(config-line)#login
Calasanz_Router(config-line)#logging synchronous
Calasanz_Router(config-line)#exit
Calasanz_Router(config)#
Calasanz_Router(config)#cdp run
Calasanz_Router(config)#no ip domain-lookup
Calasanz_Router(config)#banner motd #This is Calasanz Main router, access to this device is highly
PROHIBITED#
Calasanz_Router(config)#
Calasanz_Router(config)#enable secret class
Calasanz_Router(config)#enable password calasanz
Calasanz_Router(config)#
Calasanz_Router(config)#line vty 0 4
Calasanz_Router(config-line)#password calasanz
Calasanz_Router(config-line)#login
Calasanz_Router(config-line)#loggi sy
Calasanz_Router(config-line)#exit
Calasanz_Router(config)#
Calasanz_Router(config)#interface f0/0
Calasanz_Router(config-if)#description Gateway to our network
Calasanz_Router(config-if)#no shutdown
Calasanz_Router(config-if)#
Calasanz_Router(config-if)#int f0/0.10
Calasanz_Router(config-subif)#encapsulation dot1q 10
Calasanz_Router(config-subif)#ip address 172.16.104.1 255.255.248.0
Calasanz_Router(config-subif)#exit

Calasanz_Router(config)#
Calasanz_Router(config)#int f0/0.20
Calasanz_Router(config-subif)#encapsulation dot1q 20
Calasanz_Router(config-subif)#ip address 172.16.112.1 255.255.255.192
Calasanz_Router(config-subif)#exit
Calasanz_Router(config)#
Calasanz_Router(config)#int f0/0.30
Calasanz_Router(config-subif)#encapsulation dot1q 30
Calasanz_Router(config-subif)#ip address 172.16.112.65 255.255.255.224
Calasanz_Router(config-subif)#exit
Calasanz_Router(config)#
Calasanz_Router(config)#int f0/0.40
Calasanz_Router(config-subif)#encapsulation dot1q 40
Calasanz_Router(config-subif)#ip address 172.16.112.97 255.255.255.240
Calasanz_Router(config-subif)#exit
Calasanz_Router(config)#
Calasanz_Router(config)#int f0/0.50
Calasanz_Router(config-subif)#encapsulation dot1q 50
Calasanz_Router(config-subif)#ip address 172.16.112.113 255.255.255.240
Calasanz_Router(config-subif)#exit
Calasanz_Router(config)#
Calasanz_Router(config)#int f0/0.60
Calasanz_Router(config-subif)#encapsulation dot1q 60
Calasanz_Router(config-subif)#ip address 172.16.112.129 255.255.255.248
Calasanz_Router(config-subif)#exit
Calasanz_Router(config)#

Calasanz_Router(config)#router ospf 5
Calasanz_Router(config-router)#network 172.16.104.0 0.0.7.255 area 2
Calasanz_Router(config-router)#network 172.16.112.0 0.0.0.63 area 2
Calasanz_Router(config-router)#network 172.16.112.64 0.0.0.31 area 2
Calasanz_Router(config-router)#network 172.16.112.96 0.0.0.15 area 2
Calasanz_Router(config-router)#network 172.16.112.112 0.0.0.15 area 2
Calasanz_Router(config-router)#network 172.16.112.128 0.0.0.7 area 2
Calasanz_Router(config-router)#
Calasanz_Router(config-router)#end
Calasanz_Router#copy run start
Device IP assignment
Academic PC
ipconfig /ip 172.16.104.2 255.255.248.0
ipconfig /dg 172.16.104.1

IT support PC
ipconfig /ip 172.16.112.2 255.255.255.192
ipconfig /dg 172.16.112.1
Mail & Messaging PC
ipconfig /ip 172.16.112.3 255.255.255.192
ipconfig /dg 172.16.112.1
DNS & WebServer PC
ipconfig /ip 172.16.112.4 255.255.255.192
ipconfig /dg 172.16.112.1
File & Print Server PC
ipconfig /ip 172.16.112.5 255.255.255.192
ipconfig /dg 172.16.112.1
Admin PC
ipconfig /ip 172.16.112.66 255.255.255.224
ipconfig /dg 172.16.112.65
Finance
ipconfig /ip 172.16.112.98 255.255.255.240
ipconfig /dg 172.16.112.97
Sports PC
ipconfig /ip 172.16.112.114 255.255.255.240
ipconfig /dg 172.16.112.113
Human Resource PC
ipconfig /ip 172.16.112.130 255.255.255.248

ipconfig /dg 172.16.112.129
Switch configuration
Switch Configurations
conf ter
hostname S1
vtp mode server
vtp password casalanz
vtp domain casalanz
vlan 10
name Academic

vlan 20
name IT_Support
vlan 30
name Admin
vlan 40
name Finance
vlan 50
name Sports
vlan 60
name HR
exit
int range fa0/1-3
switchport mode trunk
int range fa0/4-7
switchport mode access
switchport access vlan 20
end
copy run star

Ping of Admin Device from Academic
Ping of IT Support Device from Academic

References
[1] M. Duggan, "Cisco CCIE Routing and Switching v5.0 Configuration and Troubleshooting," in Cisco CCIE
Routing and Switching, Indianapolis, Cisco Press, 2014, pp. 321-3330.
[2] C. Carthern and W. Wilson, "OSI layers," in Cisco Networks: Engineers' Handbook of Routing, Switching,
and Security, New York City, Apress, 2016, pp. 35-46.
[3] K. Daimi, in Computer and Network Security Essentials, Salmon Tower Building New York City, Springer,
2017, pp. 333-410.
[4] P. P. Mariño, Optimization of Computer Networks: Modeling and Algorithms: A Hands-On Approach,
3rd ed., Hoboken, New Jersey: John Wiley & Sons, 2016.
[5] B. Rogers, CompTIA Mobility+ Certification All-in-One Exam Guide, 3rd ed., New York: McGraw Hill
Professional, 2014.
[6] T. Velte and . Velte, Cisco A Beginner's Guide, New York City: McGraw Hill Professional, 2013.