Network Design and Implementation - Best Vehicles R Us Ltd Case Study - VLSM Design - IT Assignment Help

Assignment Task:

Phase 1 - Case Study Overview

Best Vehicles R Us Ltd is a company that leases buys and sells and repairs cars, trucks and buses. The Head Office is at the Nakuru site. The other company sites are in Kinamba, Chuka and Nyerin.

The company is implementing a network that should support potential growth over the next five years. The task is to design, implement and fully document the proposed Best Vehicles R Us Company network. You must prepare:
1. A Written Report
2. A Video Presentation were each member of the team outlines their contributions to the project
3. A prototype of the network, built using Packet Tracer V7 as a proof of concept that your team can build a network that will satisfy the company’s requirements.

4. Please note the following:
• You have 10 weeks (which includes the Mid-Semester Break) to complete the case study. It is important to form your team and get your specifications from a tutor early.
• Given the nature of the case study, it is not possible to cover all the required knowledge in lectures before you start and finish the case study. However, unit lecture material and CISCO guides are available on Canvas for you to reference. You can also access information on the Cisco company website

• The case study is:
o a team assessment for first time students
o an individual assessment for repeating students.

• In forming a team: it is the responsibility of each student to negotiate with other students within the unit to form the team.
• This case study requires the building and configuration of a network using skills gained through studying the Unit material.
• It is important to read and understand each requirement to ensure that the case study is completed accurately.

• The get following information from a Tutor!
o Specification Number (Spec No)
o Pseudo private Class A Internal network address (to ensure uniqueness between assignments)
o Class B NAT Pool Public IP address range
o Class C ISP Network Connection IP addresses
o Class B ISP Internet Web Server IP address
o Wireless deployment site
o Expected Percentage Growth of staff for VLSM design
o Switch Management VLAN number

5. Company Site Layouts

At Nakuru:
• The Leasing, Marketing and Vehicle Servicing groups are on floor 1.
• The Business group is on floor 2
• The Servers are on floor 1
• Site size 500metres x 500metres
• Building Floor size 100metres x 200metres
• Technical Support group on floor 1

At Kinamba:
• Leasing, Vehicle Servicing and Technical Support groups are on the ground floor of a single level building
• Site size 150metres x 200metres
• Building Floor size 20metres x 30metres

At Nyeri:
• Sales, Vehicle Servicing and Technical Support groups are on the ground floor of a single level building
• Site size 100metres x 100metres
• Building Floor size 25metres x 30metres

At Chuka:
• Sales, Vehicle Servicing and Technical Support groups are on the ground floor of a single level building
• Site size 125metres x 100metres
• Building Floor size 25metres x 40metres

Phase 2 – IP addressing and VLSM Design

The Best Vehicles R Us Company require you to use Packet Tracer V7 for development and demonstration of the prototype. The prototype does not need to have in it all the devices that would be required in the actual physical implementation.

In implementing your VLSM design, you need to consider the following:

1. The Company workgroups
• Nakuru
o Leasing group
o Marketing group
o Business group

• Kinamba
o Leasing group

• Nyeri
o Sales group

• Chuka
o Sales group

• All Sites
o Security group
o Technical Support group
o Vehicle Servicing group

2. The number of staff

Each staff member will have either a desktop PC or a Laptop PC.
• Nakuru
• 125 staff in the Leasing group
• 180 staff in the Marketing group
• 200 staff in the Business group
• Kinamba
• 80 staff in the Leasing group
• Nyeri
• 140 staff in the Sales group.
• Chuka
• 125 staff in the Sales group
• All sites
• 20 staff in the Security group, 5 staff at each site.
• 20 staff in the Technical Support group, 5 staff at each site
• 20 staff in the Vehicle Servicing group, 5 staff at each site

3. Server Farm
• Separate company Server Farm VLAN at the Nakuru site. You can decide the number and type of servers required. You must allow for IP address space for the Server farm in your VLSM design.

4. Switch Management VLANs
• A Switch Management VLAN must be created at each site
• For the Management VLAN number refer to your specifications

5. Printers and Photocopiers
• Allow for 1 printer and 1 photocopier for at each company site

6. VLSM Implementation
The company requires the use of VLSM Design to ensure efficient use of the IP address space.
• Use pseudo private class A network (refer to your specifications) for internal addressing
• Take into account the for expected % growth (refer to your specifications) of current IP requirements when determining size of subnets.
• Clearly identify ip address that are available for future use.
• Record details in table A to show the subnets that meet the Company requirements.

Phase 3 – Routing Protocol Planning

The company network will use OSPF as the routing protocol:
• OSPF MD5 authentication is required on the link between Nakuru and Chuka routers
• The bandwidth on all internal router to router links must be set to 512
• Set passive-interface for relevant interfaces
• Configure a default route to Chuka ISP
• Advertise default route to other internal routers
• Nakuru Only: router must be accessible via SSH for maintenance by Technical Support group

Phase 4 – Switch and VLAN Planning

• All sites
o Rather than use VLAN 1 as the default management VLAN at each site, configure a Management VLAN with VLAN number provided by your specifications. All switches will be in this Management VLAN.
o All unallocated switch ports must be shutdown
o All-access switches must have one access port for each VLAN configured, except for the Management VLAN

• Kinamba Only: access switch ports must be secured using port-security
• Chuka Only: access switches require path redundancy to a distribution switch. The distribution switch must be configured as the route bridge for all VLANs
• Nakuru Only: switches at this site must be accessible via SSH for maintenance by Technical Support group

Phase 5 – Configure Switches, VLANs
• Refer to Phases 2, 4
• There must be a PC (clearly identified and connected eg PC Sales) on each VLAN to allowing testing of the network

Phase 6 – Ether Channel
• The company wants to implement Ether Channel.
• In the prototype just implement LACP Ether Channel only for the Nyeri site

Phase 7 – Configure Routers and Routing Protocol
• Refer to Phase 2 for VLSM subnets and IP Address assignment.
• Refer to Phase 3 for details regarding OSPF.
• The Internet Web Server attached to Chuka ISP has a Class B address (given by your lab tutor). This Web Server represents the “Internet”.
• Configure a static route on Chuka ISP to the internal network
• For each site, record Router IP address details in table C

Phase 8 – Configuring IP Addresses

8.1 DHCP – Kinamba Site
• The company wants to use DHCP.
• In the prototype just implement DHCP only for Kinamba site.
• DHCP must dynamically provide IP address information to PC workstations/Laptops.
• DHCP must manually provide an IP address to the printer
• Use the information documented in Phase 1 to configure each DHCP pool.
• Connect only 1 PC workstation to a switch for each of the appropriate VLANs.
• Label the PCs, for example, pleasing. This will aid your team and the Tutor in testing the Packet Tracer prototype

8.2 Other Sites
• Directly configure all devices with an IP address

Phase 9 – Configure Frame Relay and PPP

• Configure a Cloud in Packet Tracer as Frame Relay Switch, use it to connect the company’s sites
• Configure PPP and CHAP authentication on the link to the ISP.

Phase 10 – Wireless LAN Deployment Site

• In the prototype, you will implement a wireless LAN only at the deployment site given in your specification.
• The Site Security group must have access to the network via the wireless LAN.
• Determine the number of Wireless Access Points that are required at the site to support the Security group. Show the details of your calculation.
• With the help of graph paper (scan it to include in the report), show to scale the deployment of the wireless access points across the site.
• In the prototype configure one wireless access point, and test that a Security group laptop can ping all devices within the site.

Phase 11 – NAT Configuration

The company wants to use private addresses. The addresses provide by your tutor do not actually belong to the private range, but are sufficient for the purpose of building the prototype network.

1. Configure NAT on the router that is acting as your gateway router to the Internet as follows:
• Define the NAT pool. Please use the Class B NAT pool public address given to you by your lab tutor.
• Assign a static address to each of the servers.
• The rest of the address range can be used with the NAT pool.
• Define an access control list, which will permit all IP traffic from permitted internal addresses.
• Overload your NAT pool

2. Test that NAT is working from a host on any LAN or VLAN. The host should be able to ping and browse to the Internet Web Server.

Phase 12 – Access Control at Nakuru Site

The company requires the implementation of ACLs to control the flow of IP traffic within its network and to the Internet. In the prototype, you will implement Access Control Lists only at the Nakuru site.

i. Before you implement the ACLs, test that each PC is able to browse and ping the Internet Web Server, all the Internal Servers and PCs on other VLANs

ii. You are to implement ACLs that will control IP traffic flow between the VLANs and the Internet as follows:
a. ACL Rules for Server Farm LAN Access
You must decide the ACL access rules as to which VLANs can access which servers in the Server Farm VLAN

b. ACL Rules for Group Access VLANs
i. All VLANs are permitted access to Internet unless specifically denied below
ii. All VLANs are permitted access to other VLANs unless specifically denied below
iii. PC hosts in the Marketing VLAN denied access to the Leasing VLAN.
iv. PC hosts in Vehicle Servicing VLAN is denied access all other VLANs
v. PC hosts in all other VLANs are denied access to Technical Support VLAN

Case Study Report Structure

The report should include concise explanation, rationale and justification for your design and implementation. The report (excluding tables A to H) should not exceed 20 pages.

• Discussion of Network Design Issues

o Discuss and provide rationale/justifications for your design choices for the following:

• IP VLSM Design
• Routing Protocols
• Switches: VLANs, STP, EtherChannel
• Wireless LANs and Site Layout for the specified site
• DHCP
• NAT
• Security and Access Control Policies
• System Testing and Verification Strategy

 

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