300575 Networked Systems Design: Network Design Assignment 2021S1 DUE DATE: 04 June XXXXXXXXXX:00 (Submission via unit vUWS site) Term 1 2021 300575 Network systems Design 2 Overview and Objectives In...

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Network Design Assignment


300575 Networked Systems Design: Network Design Assignment 2021S1 DUE DATE: 04 June 2021 17:00 (Submission via unit vUWS site) Term 1 2021 300575 Network systems Design 2 Overview and Objectives In this assignment you will design an enterprise scale network using the skills and knowledge gained in this unit and its prerequisites. This assignment is not a trivial task. To complete it as outlined with all the required documentation will be a significant task. The assignment scenario describes in general terms, the network that is to be designed. Following the scenario, the assignment is broken into a number of sections (phases), each of these phases has a detailed list of requirements. It is important to read and understand each requirement to make sure that the assignment is completed accurately. The following tasks are required to complete the assignment: • Design the network using the diagram and accompanying requirements • Simulate and test the network using the network simulator tool Cisco Packet Tracer • Correctly configure EIGRP protocol • Correctly configure VLANs and 802.1q trunking • Correctly configure PPP and PPPoE • Correctly configure DHCP • Correctly configure GRE • Correctly configure NAT and PAT • Create and apply access control lists on the appropriate routers and interfaces • Verify that all configurations are operational and functioning according to the scenario guidelines • Provide documentation and configuration files as detailed in the following sections and phases. Term 1 2021 300575 Network systems Design 3 Scenario Introduction Beresford is a company that has previous been based in the CBD of Newcastle. Recently, they have opened another site at Maitland which will be used to support a number of engineers. Because the engineers are frequently required at customer sites, they are expected to be working away from the Maitland office much of the time. The business has grown rapidly; a proof of concept has been created, the infrastructure design has been planned and more engineers have been hired to scale the product. This new model will require a larger location for day-to-day management as well as a number of secure connections between home locations of newly appointed staff. It is your group’s task to analyse all the requirements and to develop a report that specifies the implementation of the requirements, offering realistic alternatives where possible (Final Report). This report will be used as the basis for the redeveloped structure, as Beresford grows. Your group will be required to bench test the design to provide a “proof of concept” to ensure your group’s solution will cater to Beresford’s needs. This is an important step because it is essential to understand if the solution will work correctly before committing contractually to delivering this project. Bench testing in this case will be done with software emulation, Packet Tracer. Requirements Being a growing company, the initial network topology was just a simple router, switch and internet connection. With the rapid growth generated through hiring developers, Beresford has managed by purchasing additional switches and daisy chained them to create a single flat network. Business requirements of Beresford: • Scalable design which will facilitate business expansion. • Seamless connectivity between their main campus at Newcastle (Newc1, Newc2 and Newc3) and the newly opened office at Maitland (Mait). • Secure communication to cloud storage location (reached via ISP). Beresford’s Internet Service Provider (HunTel) will be providing a WAN solution and will be supplying your group with specific information and partial configuration to assist with bench testing. Technical consultants have assisted Beresford in translating the above business requirements into the following sections, which contain technical requirements your group needs to incorporate into the solution. Term 1 2021 300575 Network systems Design 4 Section 1: Basic Networking Figure 1: Basic network diagram (proposed topology) Basic Configuration Requirements • Configure device names as shown in the topology. • Disable DNS lookup. • Disable HTTP on all routers and switches. • Enable SSH on all router and switches. Use the device name as the username and cisco as the password on all devices. • Configure logging synchronous for the console line. • Configure a MOTD banner to warn users that unauthorized access is prohibited. • Device Security o Encrypt the plain text passwords. o Assign class as the privileged EXEC mode secret password. Assign cisco as the console and VTY passwords for login. • For testing purposes Beresford advises their WAN provider, HunTel, has set clock rate for all external WAN serial links to 128000 kbps. • Configure the IPv4 and IPv6 addresses listed in the Addressing Table. Term 1 2021 300575 Network systems Design 5 Topology Diagram When the network design has been finalised a detailed topology diagram is required. The diagram will include but not be limited to the following: • Internetworking devices and interface details. • Link networks and IP address information. • Routing Domains and static route details. • Switching details and features e.g. STP, Channel Ports, VLAN information. The topology diagram should be complete enough to allow a third party, for example a network contractor, to install and configure the network without any additional documentation. Notes Your group will be allowed to use this detailed topology diagram during the Demonstration. Section 2: Network Addressing IP Address Scheme Beresford will be using the following addressing schemes: Address Type Address Owner IPv4 Private Address Allocation 172.20.0.0/19 6 (46)* 5 (39)* Beresford IPv6 Address Allocation 2001:172:20::/52 Beresford IPv4 Public Address Allocation 210.50.0.0/28 Must be allocated across Newc1 and Newc2 IPv4 ISP Point-to-point Newc1 link 100.1.1.0/30 ISP IPv6 ISP Point-to-point Newc1 link 2001:100:1:1::/64 ISP IPv4 ISP Point-to-point Newc2 link 100.1.2.0/30 ISP IPv6 ISP Point-to-point Newc2 link 2001:100:1:2::/64 ISP ISP Lo1 for IPv4 55.55.55.55/32 ISP ISP Lo1 for IPv6 2001:55:55:55::55/ 128 ISP ISP Lo2 for IPv4 66.66.66.66/32 ISP ISP Lo2 for IPv6 2001:66:66:66::66/ 128 ISP Table 2: IP address block allocations The Data Centre provider has been asked to lease some of their public address space for Beresford’s data centre infrastructure. HunTel will provide an internet tail (link) through serial connections to Newc1 and Newc2 and advertise this address space to the Internet. To achieve this there will be a static route implemented using the point-to-point link public address space provided in Table 2. Network Requirements • All routers, switches and PCs are dual stack devices. • EIGRP router ID will come from the private IPv4 internal addressing. • PPPoE links between all users on Eng Users networks and Mait will come from internal addressing. Allocate address space and consider how this can be routed within the network. Term 1 2021 300575 Network systems Design 6 • Ensure route aggregation has been built in to the addressing scheme for scalability. • Gateway addresses will be assigned the first usable address in each subnet for both IPv4/6. • Router interfaces for IPv6 will use static link-local addressing (to keep the addressing simple) • Beresford’s network manager, PCM, is physically connected to the switch SwM. PCM uses the last address on the Management VLAN. Host Requirements • Newcastle will use IPv6 addresses which are dynamically assigned through SLAAC. VLAN Information Subnetting using VLSM is required for network addressing scheme. Site VLANs Required Newc1, Newc2 and Newc3 Accounting/Marketing/Sales/Office 6 (46)* 5 (39)* Mait Maitland Office / Engineering Both sites Native / Management / Blackhole Table 3: VLAN Information List Notes The tables A.1 and A.2 must be completed for the Progress Report due in Week 5. Warning Network addressing scheme should take into account route aggregation (summarisation). Addressing Requirements VLAN Host Requirements Growth Newc Accounting 40 Hosts 6 (46)* 5 (39)* Yes Newc Marketing 90 Hosts Yes Newc Sales 100 Hosts Yes Newc Office 250 Hosts Yes Management 5 Hosts (per site) No Mait Office 50 Hosts Yes Mait Engineering 30 Hosts Yes Table 4: Current Host Addressing Requirements Beresford expects that it will have to provision for doubling of the sizes of most of its VLANs over the next two years. Section 3: Switching Networks Beresford is moving away from their ad-hoc switch design to a more hierarchical and scalable design. The deployment of the following technologies should “future proof” the business for further expansion as required. VLAN Requirements • Switch access ports allocation is three ports per VLAN per switch. • Assign VLAN 199 as the Management VLAN and Native VLAN. Term 1 2021 300575 Network systems Design 7 • Any unassigned ports are to be placed into an unused and non-routed VLAN (also referred to as a BlackHole VLAN (VLAN 668) (i.e. next door to the Devil). Additionally, these ports should be disabled and the VLAN deleted. • Allow only configured VLANs to be permitted on trunk links. Switching Technologies • Enable rapid-PVST+ on all switches. • Manipulate Spanning Tree to load balance VLANs between all HQ switches. • Implement EtherChannel between SwM and SwB. Justify your choice of EtherChannel method chosen. • Implement First Hop Redundancy (FHR) using HSRP on Newc1 and Newc2. Load Balance Active and Standby between these two physical routers. Section 4: Network Routing With the flexible IP address scheme created for Beresford, integration of the newly created environment using EIGRP will be deployed throughout its organization. Routing Requirements • Inter-VLAN Routing: Layer 3 routing at the Newcastle virtual router and router-on-a-stick at Maitland. • Summarisation to be implemented where possible with EIGRP. • EIGRP Router IDs allocated from internal IPv4 addressing. • For best practice and security reasons, unnecessary routing updates shall be prevented. EIGRP Requirements • Configure EIGRP throughout the routing domain. • EIGRP routing updates and adjacencies between Newcastle and Maitland must occur over the GRE tunnel. Warning A functional GRE tunnel (in Section 6) is required for exchanging EIGRP routes successfully between Maitland and Newcastle. (While preparing your implementation, you may wish to use static
Answered 31 days AfterApr 25, 2021

Answer To: 300575 Networked Systems Design: Network Design Assignment 2021S1 DUE DATE: 04 June XXXXXXXXXX:00...

Ali Asgar answered on May 27 2021
130 Votes
New Network Configurations
New Network Configurations
Beresford Network Re-configuration report
(
May 27, 2021
Beresford
New Castle
)
Table
of Contents
Introduction    3
Network Design Summary    4
Logical diagram    4
Summary addressing table    5
IPv4 Addressing    5
IPv6 Addressing    5
Network design details    6
Appendix    6
Introduction
A new office of Beresford has been opened in Maitland for their engineering department. Due to increase in number of employees and scale of work, a larger location for daily operations is required. For this the network overhaul is done to allow for future growth and expansion with significant changes to the network design and configuration.
The head office of Beresford is located at New Castle. The initial network configuration of head office was simple with a router, switch and internet connection. This network evolved with time into multi-switch design. Now a new router is added and connected to a new branch location at Maitland.
A new multi-router high availability configuration is designed for the head office that will take into consideration device and links redundancy to maintain uptime in case of single point failure.
A proof of concept for this new design is submitted to the management for approval and the management has asked us to bench test this proof of concept in Cisco Packet Tracer Simulator software and provide a final report with necessary alternatives as a final document for implementation.
The basic...
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