Networked Systems Design

Table of Contents

Introduction.

Summary of proposed network design.

Logical diagram for proposed network design.

Addressing table and explanation.

Details of recommended network devices.

Conclusion.

References:

1. Introduction to Beresford Company Analysis

The effective communication among the Maitland and Newcastle sites of Beresford company is not possible with simple router and maintained ISP connection. The effective support to increased engineers on both sites and dealing customers requires a well implemented network at this Beresford company. With increased growth of this Beresford company, the network infrastructure will also be changed to handle the increased user load. The engineers working on both sites will require secured communication for their regular activities. Thus, to maintain security and reliability in the networking operations and performed communication, new network implementation is recommended to this Beresford company.

All the three campuses of Newcastle and new site of Maitland can perform the secured communication through the proposed new network design. This new design will provide scalability to the business operations of Beresford company. The seamless connections among all sites can easily be developed for this Beresford company. The ISP connection is essential for WAN implementation at Beresford company and a dedicated ISP connection will be proposed in new design. The new design will also make use of cloud resources for maintaining its services. The new design will maintain quality routers and switches for providing services on all sites of Beresford company. All engineers working on different sites of Beresford company can perform secured communication and can also use cloud resources for storing data and reports.

2. Summary of Proposed Network Design

Proposing a new network design to the Beresford company will require a deep understanding of networking concepts. The use of cloud services is making it an effective and easy design but high configuration of PPP, GRE, NAT and other important techniques will become essential. The allocation of IP addresses (Private and public) becomes important for developing secured communication among the provided sites of Beresford company. The services of NAT and DHCP will handle the IP allocation at Beresford company. The 802.1q trucking will be performed to all created VLANs. The implementation of ACL and maintained interfaces will help in maintaining effective security for the proposed network to Beresford company.

All the devices will maintain proper configuration and connections with ISP. The proposed network topology to this Beresford company will maintain SSH on its defined routers. The synchronization of logging to the console window will also be maintained. For implementation of high security on all the devices, encryption will be used. The implementation of encryption will provide security to all the communication performed among both sites of Beresford company. Most of the recommended devices to this network will be from Cisco. The IPv4 and IPv6 addresses as provided in the case will be assigned to the devices used in this network configuration. the required serial and fast Ethernet based connection are well developed for connecting both sites of Beresford company.

3. Logical Diagram for Proposed Network Design

The logical network design for the Beresford company is developed in Packet tracer. The provided base topology is being used with some modifications. The required serial and fast Ethernet based connections are developed among the routers, switches and end user devices. Both type of IP allocation is also carried out for these installed devices for maintaining secured communication among both sites of Beresford company. The PPP and HDLC are carried out for maintaining secured connections with the ISP. The GRE tunnel is also developed for connecting the branch offices of Beresford company by making serial connections among the used routers. The required loops among the switches are also developed for ensuring the security of performed communication within the created VLANs. Thus, the developed logical diagram for proposed new network at Beresford company to connect it's both sites developed in Packet tracer is supplied below:

This design is showing use of six different routers and three switches which are creating VLANs for the branch office of Beresford company. All the required technologies and services for securing this network are developed properly. The implementation of wireless network and servers is additionally carried out for the base topology. The 802.1q and 802.11ac are mainly implemented in the proposed design for maintaining effective communication.

4. Addressing Table and Explanation

The implementation of this network design to all created VLANs for both sites of Beresford company requires proper IP allocation. The IPv4 allocation is carried out for all the developed tables. The table showing IPv4 allocation to different departments working as separate VLANs is supplied below:

VLAN name

Subnet ID

Subnet mask

Mask bit

Host address range

Broadcast address

Newc Accounting

172.16.0.0

255.255.255.192

/26

172.16.0.1 - 172.16.0.62

172.16.0.63

Newc Marketing

172.16.10.0

255.255.255.128

/25

172.16.10.1 - 172.16.10.126

172.16.10.127

Newc Sales

172.16.20.0

255.255.255.128

/25

172.16.20.1 - 172.16.20.126

172.16.20.127

Newc Office

172.16.30.0

255.255.255.0

/24

172.16.30.1 - 172.16.30.254

172.16.30.255

Management

172.16.40.0

255.255.255.240

/28

172.16.40.1 - 172.16.40.14

172.16.40.15

Mait Office

172.16.50.0

255.255.255.192

/26

172.16.50.1 - 172.16.50.62

172.16.50.63

Mait Engineering

172.16.60.0

255.255.255.192

/26

172.16.60.1 - 172.16.60.62

172.16.60.63

Based on the required IP addresses in different VLANs of this Beresford company all the possible IP allocation are carried out. This IP implementation is showing all the required fields for assuring the required IP implementation to both sites of Beresford company. All the created VLANs can make use of these recommended IP addresses for developing their connections with each other. The used devices in the developed network are assigned with the provided IP addresses of both types. The above presented table is just showing the IP implementation for the created VLANs.

5. Details of Recommended Network Devices

The Beresford company is maintaining a simple router and ISP based network which can easily be attacked by the attackers. Thus, there are different devices which will be recommended to this Beresford company for assuring the secured communication among both sites and inside the created VLANs. The table showing the recommended networking devices and their maintained specifications with cost is supplied under:

Sr. No.

Device name

Cost in AUD $

Specifications

1

Firewall: Fortinet | FG-60E-BDL-950-36

$4500

Protects against all malwares and virus attacks.

Use SPU technology for encryption of passwords and data.

The requirement of IPsec based VPN can be covered with it.

SD-WAN implementation is providing flexibility to it.

2

Router: Cisco RV340 Dual WAN

$1350

can maintain 900 MBPS speed.

provides support of Dual WAN.

provides 14 ports for device connections.

3

Switch: Cisco SG350-28

$900

It provides 28 ports.

high bandwidth connections can easily be managed.

Both CLI and web UI based commands can be executed.

4

WAP: Linksys WRT1900ACS AC1900 Dual-Band Wireless Router

$750

Use of N-technology makes it fast.

maintains 1.6 GHz inbuilt CPU.

can provide speed of 600 MBPS.

consumes very low power and provides long range coverage.

5

Server: Dell PowerEdge R540 Rack Server, Intel Xeon 5218

$12000

maintains 16 core processor.

maintains 32 GB RAM.

Maintains 4 TB hard disks.

have capabilities of dual processors.

6

End user system: Lenovo Ideacentre 510S Desktop (9th Gen Intel Core i3

$1000

The graphics card is integrated with this system.

It provides 4 GB RAM and 1 TB hard disk.

6. Conclusion on Beresford Company Analysis

The communication development among the Maitland and Newcastle sites of Beresford company is not possible with simple router and maintained ISP connection. The effective support to increased engineers on both sites and dealing customers requires a well implemented network at this Beresford company. With increased growth of this Beresford company, the network infrastructure will also be changed to handle the increased user load. The engineers working on both sites will require secured communication for their regular activities. Thus, to maintain security and reliability in the networking operations and performed communication, new network implementation is recommended to this Beresford company.

All the three campuses of Newcastle and new site of Maitland can perform the secured communication through the proposed new network design. This new design will provide scalability to the business operations of Beresford company. The seamless connections among all sites can easily be developed for this Beresford company. The ISP connection is essential for WAN implementation at Beresford company and a dedicated ISP connection will be proposed in new design. The new design will also make use of cloud resources for maintaining its services. The new design will maintain quality routers and switches for providing services on all sites of Beresford company.

8. References for Beresford Company Analysis

Ambiyar, A., Yondri, S., Irfan, D., Putri, M. U., Zaus, M. A., & Islami, S. (2019). Evaluation of Packet Tracer Application Effectiveness in Computer Design Networking Subject. International Journal on Advanced Science Engineering Information Technology, 9(1), 54-59.

Hossain, M. A., & Zannat, M. (2019). Simulation and Design of University Area Network Scenario (UANS) using Cisco Packet Tracer. Global Journal of Computer Science and Technology.

Janal, M. A. B., Jalil, Z. B. A., & Ahmad, Z. B. (2020). THE EFFECTIVENESS IN USING PACKET TRACER SIMULATION SOFTWARE IN IMPROVING THE SKILLS AMONG COMPUTER SYSTEM AND NETWORKS PROGRAMME STUDENTS. International Journal Of Technical Vocational And Engineering Technology (iJTveT), 2(1), 38-49.

Kabir, A. I., Basak, S., Tanim, M. H., & Islam, A. (2019). Smart University Network Module Implementation by Using Cisco CCNA with Packet Tracer. Journal of Network Communications and Emerging Technologies (JNCET) www. jncet. org, 9(12).

Sita, K., Saleem Akram, P., & Krishna Hemanth, J. (2019). Design and implementation of Smart Campus Network (No. 1882). EasyChair.

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