Republic of the Philippines Eastern Visayas State University

Tacloban City

CCNA III

Case Study JAN CORPORATION

Engr. Chito Petilla Instructor

Gerome Jan M. Llames BSECE 5A Student

ABSTRACT

JAN CORPORATION, a merchandise concern entity will be operating soon its business in a calendar

year basis as its normal operating cycle or accounting period. The company will offer clothing line products

to the market like; shirts, shorts, pants, blouse, etc. Furthermore, to alleviate the probability of losses in

the inventories and the raw materials used in the production process, this entity uses Perpetual Inventory

method of accounting, in recording its business transactions to have a better control on the inflows and

outflows of the inventories which are purchased and/or sold by the company in its normal course of the

business.

In lined with the prior information, here are our different departments that will handle the whole

transactions during its normal operating cycle:

Finance Department

Sales Department

Marketing Department

Production Department

Research & Development Department

Human Resource Department

Customer Service Department

Maintenance Department

I.T. Department

Shipping Department

Purchase Department

Accounting Department

As the Network Administrator of this company, I was tasked to design a network topology which

would support the 12 departments mentioned above with an estimated maximum users of 100 each

department. Finance, Research & Development, Production, Marketing, Maintenance should have full

connectivity, but other departments are not allowed to it. Sales, Shipping, & Purchase Department should

also have full connectivity. Human Resource & Customer Service allows access to each other but is

rejected to access the I.T Department. Accounting Department should also have their own connectivity

as well.

On the other hand, this corporation doesn’t exist and is designed only for the Case Study of the

subject CCNA3. This study will focus more on the different configurations made on the different devices

such as PC’s, Routers, Switches, Modem, Cloud & Server. Moreover, all of them should be able to access

the internet.

VLAN’s 2, 3 & 7 are on the same router but can’t communicate with each other. VLAN’s 4, 5 & 6

are also on the same router, but VLAN 4 & 5 can’t access VLAN 6. On the hand VLAN’s 4 & 5 can access

each other. Further than that all of the VLAN’s can access the Internet. VLAN’s 2, 3 & 7 can access the

Web server 1 while VLAN’s 4, 5 & 6 can access Web server 2. Web Server 1 & 2 serves here as the

Internet.

Port security was configured on the interfaces which a host or PC connects so that PC will

accept only the required single Mac address allowed and will shutdown its interface if another host will

connect to that certain interface or tries to hack it.

Furthermore, due to PT bug, PC can’t ping the laptops. Laptops can’t ping each other, because

they are connected on different router. On WiFi1, laptops are temporarily allowed on VLAN’s 2, 3 & 7.

On WiFi2, laptops are also temporarily allowed on VLAN’s 4, 5 & 6.

Devices Addressing Table

DEVICE

INTERFACE

IP ADDRESS

SUBNET MASK

DEFAULT GATEWAY

R1

Fa0/0 100.100.100.1 255.255.255.240

Fa0/1 200.200.200.1 255.255.255.0

Fa0/1.2 192.168.20.1 255.255.255.0

Fa0/1.3 192.168.30.1 255.255.255.0

Fa0/1.7 192.168.70.1 255.255.255.0

R2

Fa0/0 100.100.150.1 255.255.255.240

Fa0/1 200.200.250.1 255.255.255.0

Fa0/1.4 192.168.40.1 255.255.255.0

Fa0/1.5 192.168.50.1 255.255.255.0

Fa0/1.6 192.168.60.1 255.25.255.0

Laptop1 Wireless

Wireless 192.168.100.100 255.255.255.0 192.168.100.1

WiFi1

WAN 200.200.200.2 255.255.255.240 200.200.200.1

LAN/Wireless 192.168.100.1 255.255.255.0

Laptop2 Wireless

Wireless 192.168.100.110 255.255.255.0 192.168.100.2

WiFi2

WAN 200.200.200.3 255.255.255.240 200.200.200.1

LAN/Wireless 192.168.100.2 255.255.255.0

PC1 Fa0/1 192.168.30.2 255.255.255.0 192.168.30.1

PC2 Fa0/11 192.168.20.2 255.255.255.0 192.168.20.1

PC3 Fa0/1 192.168.20.3 255.255.255.0 192.168.20.1

PC4 Fa0/11 192.168.20.4 255.255.255.0 192.168.20.1

PC5 Fa0/1 192.168.20.5 255.255.255.0 192.168.20.1

PC6 Fa0/11 192.168.40.2 255.255.255.0 192.168.40.1

PC7 Fa0/1 192.168.50.1 255.255.255.0 192.168.50.1

PC8 Fa0/11 192.168.20.6 255.255.255.0 192.168.20.1

PC9 Fa0/1 192.168.60.1 255.255.255.0 192.168.60.1

PC10 Fa0/1 192.168.30.3 255.255.255.0 192.168.30.1

PC11 Fa0/11 192.168.30.4 255.255.255.0 192.168.30.1

PC 12 Fa0/1 192.168.70.2 255.255.255.0 192.168.70.1

S1 VLAN 10 192.168.10.1 255.255.255.240

S2 VLAN 10 192.168.10.2 255.255.255.240

S3 VLAN 10 192.168.10.3 255.255.255.240

S4 VLAN 10 192.168.10.4 255.255.255.240

S5 VLAN 10 192.168.10.5 255.255.255.240

S6 VLAN 10 192.168.10.6 255.255.255.240

S7 VLAN 10 192.168.10.7 255.255.255.240

S8 VLAN 10 192.168.10.8 255.255.255.240

S9 VLAN 10 192.168.10.9 255.255.255.240

S10 VLAN 10 192.168.10.10 255.255.255.240

Web Server FastEthernet 100.100.100.2 255.255.255.240 100.100.100.1

JAN CORPORATION NETWORK TOPOLOGY

CONFIGURATIONS

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DSL-Modem-PT No configuration was made in the modem only that the port 1 is connected to the router with a straight through cable and Port0 with phone cable to the Modem4 of the Cloud-PT. Cloud-PT DSL was used in the cloud and its Ethernet6 was connected to the FastEthernet of the Server-PT. Web Server-PT This was manually configured with the IP Address 0f 100.100.100.2/28 and a default gateway of 100.100.100.1/28 for the first, 100.100.150.2/28 and a default gateway of 100.100.150.1/28. WiFi1: For VLAN’s 2,3 & 7 Internet address was set to 200.200.200.2/28 & LAN address was 192.168.100.1/24. Password is knonos, WEP key is 1234567890 & at channel 1. WiFi2: For VLAN’s 4,5 & 6

Internet address was set to 200.200.200.3/24 & LAN address was 192.168.100.2/24. Password is kronos,

WEP key is 0987654321 & at channel 6.

Laptop1

Default gateway was set to 192.168.100.1/24 and the IP address starts at 192.168.100.100/24 with only

10 maximum users available.

Laptop2

Default gateway was set to 192.168.100.2/24 and the IP address starts at 192.168.100.110/24 with only

10 maximum users available.

PC1-PC12 IP addresses and default gateways are configured manually. It’s in the devices addressing table.