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Network Design For Bright Company

Network Design Goals

Bright is a business initiative whose business operational processes relies so much to Information technology in its day-to-day activities. For instance, for a client to receive a service in Bright grounds, the client has to check-in with a ticket for her to access any kind of service. The administration has therefore decided to come up with a type of network design that will support competently business processes. Bright company has therefore been contracted us to come up with a network design that will support the business functionalities. In this piece of paper, we will be providing the network model on how our real network will be.

Network Design Goals

The network to be executed has to hit the following major technical requirements:

Security: the Bright proposed network design has to attain administration need of having secured network that filters both outgoing and incoming traffic. This goal will be scored by use of access lists implemented in the Core router.
Scalability: the Bright network in design process is supposed to be flexible in concerns of expansion. For example, the network has to offer an allowance of growth without disturbing with the initial network design. It should permit addition of additional LANs deprived of interfering the existing network design.

Probable users

The key envisioned users of the Bright network are the management namely: human finance, finance and the resource departments. Supplementary departments such as sales and engineering will require usage of the network but not as much as likened to later three. Furthermore, visitors and customers will be inactive users of the network since they will either necessitate the output of the network for them to be served or will need network infrastructure to get what they requisite.

Bright Project requirements

To put up our network up running, the following tabulated hardware components have to be availed.

Name of item	Specifications	Required Quantity	Justification
Layer 3 Switch	Ø VLAN features Ø Routing capability Ø STP enabled	1	Layer 3 switch will be used to perform inter-VLAN routing roles.
Wireless router	Ø USB port-1 Ø Flash memory: 256mb Ø LAN interface 4 fa Ports Ø Auxiliary port: RJ 45 single port Ø DRAM : 512MB	2	Wireless router will be deployed to support wireless computing devices
Server	Ø Processor number:26 Ø Processor family: intel Ø Processor speed: 3.7 Ghz Ø Max memory: 2 TB Ø Cache level: l3 38.80 Ø Memory slots: 18 DIMM	2	One server will be used to host DHCP and DNS services, another one will host print, file sharing, mailing and messaging services.
Firewall	Ø Cyber-roam	1	Cyber roam firewall will be used to monitor outgoing and incoming traffic
Switch	Ø Fast Ethernet ports-48 Ø DRAM: 128 MB Ø Flash memory-64 MB Ø Model- 2900 series Cisco Switch	5	Each department necessitates a single switch (5*1=5). The switches will be needed for network extension
Router	Ø Interface card slots: 4 Ø Flash memory:128 MB Ø Network slot: 1 Ø USB ports-2 Ø Dram: 512 MB	1	Router is required to route outgoing traffic and route incoming traffic too.

Non-functional requirements

Device name	Quantity	Justification
Cabinets	5	For covering switches and servers
Trunking	45 pieces	For housing of network cables
RJ 45 clips	1500	For termination of patch codes
Patrice boxes	170 pieces	For termination of wall patch codes
UPS	5	For power backup in the switch and server cabinets
Patch panel	5	For cable organisation

Network Design

IP Addressing

LAN area	No of Nodes	Octet	NA	First Usable Address	LUA	Mask
Finance	30	32	172.16.200.0	172.16.200.0	172.16.200.1	/27
Human Resource	30	32	172.16.200.32	172.16.200.33	172.16.200.62	/27
Administration	30	32	172.16.200.64	172.16.200.65	172.16.200.94	/27
Engineering	30	32	172.16.200.96	172.16.200.97	172.16.200.126	/27
Sales	30	32	172.16.200.128	172.16.200.129	172.16.200.158	/27

Distribution Layer Switch Configuration

Step A: Clearing the Startup configuration File

Switch>

Switch>ena

Switch#era start

Switch#reload

Proceed with reload? [Confirm]

Step 2: Switch Configuration

Switch>

Switch>ena

Switch#confi ter

Switch(config)#banner motd @Don’t tamper with DSL [email protected]

Switch(config)#ser pass

Switch(config)#lin c 0

Switch(config-line)#pass password

Switch(config-line)#login

Switch(config-line)#logg sy

Switch(config-line)#lin vty 0 15

Switch(config-line)#login

Switch(config-line)#pass password

Switch(config-line)#logi

Switch(config-line)#logg sy

Switch(config-line)#exi

Switch(config)#vlan 10

Switch(config-vlan)#name ADMIN

Switch(config-vlan)#inter vlan 10

Switch(config-if)#ip add 172.16.200.1 255.255.255.224

Switch(config-if)#no shu

Switch(config-if)#vlan 11

VLAN 11 added:

Name:VLAN0011

Switch(config-vlan)#nam HR

Switch(config-vlan)#

Switch(config-vlan)#inter vlan 11

Switch(config-if)#ip add 172.16.200.33 255.255.255.224

Switch(config-if)#no shu

Switch(config-if)#vla 12

VLAN 12 added:

Name:VLAN0012

Switch(config-vlan)#nam Finance

Switch(config-vlan)#inter vla 12

Switch(config-if)#ip add 172.16.200.65 255.255.255.224

Switch(config-if)#no shu

Switch(config-if)#vla 13

VLAN 13 added:

Name:VLAN0013

Switch(config-vlan)#name Engineering

Switch(config-vlan)#inter vla 13

Switch(config-if)#ip add 172.16.200.97 255.255.255.224

Switch(config-if)#no shu

Switch(config-if)#vla 14

VLAN 14 added:

Name:VLAN0014

Switch(config-vlan)#nam Sales

Switch(config-vlan)#int vl1 14

Invalid Command

Switch(config)#inter vla 14

Switch(config-if)#ip add 172.16.200.129 255.255.255.224

Switch(config-if)#no shu

Switch(config-if)#inter fa0/1

Switch(config-if)#no swit

Switch(config-if)#ip add 222.222.222.2 255.255.255.0

Switch(config-if)#no shu

Switch(config-if)#ip route 0.0.0.0 0.0.0.0 222.222.222.1

Switch(config)#end

Switch#copy run start

Destination filename [startup-config]?

Building configuration…

[6]

Router configuration

Router>ena

Router#era start

Router#reloa

Proceed with reload? [confirm]

Building simulated configuration…

Router>

Router>ena

Router#conf ter

Router(config)#bann motd %This is Our Core Router, handle it Carefully%

Router(config)#lin c 0

Router(config-line)#pass password

Router(config-line)#logi

Router(config-line)#logg sy

Router(config-line)#lin vty ?

Router(config-line)#exi

Router(config)#line vty ?

<0-4> <0-4> First Line number

Router(config)#line vty 0 4

Router(config-line)#pass password

Router(config-line)#logg sy

Router(config-line)#logi

Router(config-line)#exi

Router(config)#host CoreRouter

CoreRouter(config)#enab sec password

CoreRouter(config)#servi pass

CoreRouter(config)#inter f0/0

CoreRouter(config-if)#no shu

CoreRouter(config-if)#ip add 222.222.222.1 255.255.255.0

Router DHCP configuration

Router>

Router>ena

Router#conf ter

Router(config)#bann motd %This is Our Core Router, handle it Carefully%

Router(config)#lin c 0

Router(config-line)#pass password

Router(config-line)#logi

Router(config-line)#logg sy

Router(config-line)#lin vty ?

Router(config-line)#exi

Router(config)#line vty ?

<0-4> <0-4> First Line number

Router(config)#line vty 0 4

Router(config-line)#pass password

Router(config-line)#logg sy

Router(config-line)#logi

Router(config-line)#exi

Router(config)#host CoreRouter

CoreRouter(config)#enab sec password

CoreRouter(config)#servi pass

CoreRouter(config)#inter f0/0

CoreRouter(config-if)#no shu

CoreRouter(config-if)#ip add 222.222.222.1 255.255.255.0

CoreRouter(config-if)#exi

CoreRouter(config)#ip dhcp pool Bright_LAN

CoreRouter(dhcp-config)#leas 4 15 10

CoreRouter(dhcp-config)#network 172.16.200.0

CoreRouter(dhcp-config)#dns-server 172.16.200.67

CoreRouter(dhcp-config)#default-router 222.222.222.1

CoreRouter(dhcp-config)#exi

CoreRouter(config)#ip dhcp excluded-address 172.16.200.65 172.16.200.70

CoreRouter(config)#inter fa 0/0

CoreRouter(config-if)#ip helper-address 172.16.200.67

CoreRouter(config-if)#end

CoreRouter#copy run start

Destination filename [startup-config]?

Building configuration…

Server Configuration

DHCP Server Configuration

In our Bright technology network implementation project, Windows 2012R server will be used to host DNS and DHCP services for our network. Pictured below is configuration steps for both DNS and DHCP services

Security configuration

Security characteristic is important to any business initiative. It is necessary to keep at the fence cyber-intrusion activities that would in one way business operational activities down to its knees. Wang exclaims, “Prevention is better than cure.” Nevertheless we may say we are keeping cyber-attacks at a far distance, this cannot be enough, as worker education about cyber-attacks is important too. To attain internal security controls, our project is going to apply access lists on our Core router to ensure that the concerned traffic does not get away into limited zones. For example, traffic should not flow from engineering and sales department to finance department. It is of value to point out too that cyberoam will be deployed to monitor both outgoing and incoming traffic [9]. Below is access list configuration applied on router below.

CoreRouter#conf ter

CoreRouter(config)#access-list 120 deny tcp 172.16.200.96 0.0.0.64 172.16.200.64 0.0.0.32

CoreRouter(config)#access-list 120 permit tcp 172.16.200.96 0.0.0.64 172.16.200.200 0.0.0.0

CoreRouter(config)#access-list 120 permit ip any any

CoreRouter(config)#interface f0/0

CoreRouter(config-if)#ip access-group 120 in

CoreRouter(config-if)#exi

CoreRouter(config)#exi

CoreRouter#copy run start

Destination filename [startup-config]?

References

S. Noble, Building Modern Networks, Birmingham: Packt Publishing Ltd, 2017.

P. Ciccarelli, ‎. Faulkner and ‎. FitzGerald, Introduction to Networking Basics, Hoboken: John Wiley & Sons, 2012.

T. Szigeti, ‎. Hattingh and ‎. Barton, End-to-End QoS Network Design: Quality of Service for Rich-Media & Cloud, Indinapolis: Cisco Press, 2013.

Kavian and Y. S., Intelligent Systems for Optical Networks Design: Advancing Techniques, Hershey: IGI Global, 2013.

M. Jacot, ‎. Jacot and ‎. Bali, Advanced Tuning for JD Edwards EnterpriseOne Implementations, New York City: McGraw Hill Professional, 2013 .

T. Lammle and ‎. Montgomery, CCNA Data Center: Introducing Cisco Data Center Technologies Study Guide, Hoboken: John Wiley & Sons, 2016 .

M. Duggan, Cisco CCIE Routing and Switching v5.0 Configuration Practice Labs, Indianapolis: Cisco Press, 2014.

M. M. Alani, Guide to Cisco Routers Configuration: Becoming a Router Geek, New York City: Springer, 2017.

L. Wang, ‎. Jajodia and ‎. Singhal, Network Security Metrics, New York City: Springer, 2017 .

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