Project Title: Enterprise Network Design for Construction Company

🎯 Project Overview:

This project simulates a complete network infrastructure for a multi-site construction company. It connects a Main HQ and a Branch site, supporting specific departments like Finance, IT, and a Data Center. The design focuses on high availability, redundancy, and efficient traffic management using Huawei eNSP.

⚙️ Technical Implementation

This project fulfills the following network requirements and configurations:

1. Network Topography & Design

• Multi-Site Architecture: Designed a comprehensive network connecting a Main Headquarters and a Branch Office using a simulated Private WAN.
• Departmental Segmentation: Created dedicated networks for specific departments:
  • Data Center: VLAN 100 (High availability zone)
  • Finance: VLAN 10
  • IT Department: VLAN 20
  • Administration: VLAN 30
  • Marketing: VLAN (120)

2. Switching Technologies (Layer 2)

• VLAN Configuration: Implemented VLANs to isolate broadcast domains and improve security.
• Trunking & Access: Configured 802.1Q trunks between switches and access ports for end devices.
• Core Switching: Deployed redundant Core Switches (S1 & S2) at the Main Site to handle inter-VLAN traffic and (S15 & S16) at Branch site.

3. Routing Technologies (Layer 3)

• OSPF (Open Shortest Path First): Configured dynamic routing to facilitate automatic route exchange between the Main Site and the Branch Office.
• Static Routing: Implemented default static routes for reliable upstream connectivity to the ISP.
• Inter-VLAN Routing: Enabled communication between different subnets using VLANIF interfaces on the Core Switches.

4. Network Services & Management

• DHCP Services: Configured a dedicated DHCP server (AC1 & AC2) to provide dynamic IP addressing to APs and their STA ,and DHCP server (S15) to provide dynamic IP addressing to end devices at Branch site.
• Gateway Redundancy: Utilized Virtual Gateway IPs on the Core layer to ensure continuous connectivity for endpoint devices.
• DNS (Domain Name System): Deployed a DNS server to resolve domain names for internal and external resources.
• SNMP (Simple Network Management Protocol): Enabled SNMP to facilitate network monitoring and management.

5. Security & Traffic Control

• NAT (Network Address Translation): Configured to allow internal private IP addresses to access the internet via the ISP.
• Access Control Lists (ACLs): Applied traffic filtering rules to restrict unauthorized access between sensitive departments and the Data Center.

🗺️ Network Topology

The network consists of two main geographical sites connected via a simulated WAN:

• Main HQ: Hosts the redundant Core layer (S1, S2), the Data Center (VLAN 100), and key departments. Handles ISP connection.
• Branch Office: Connects to the Main HQ via OSPF and serves local users.
• ISP Cloud: Simulates external internet connectivity with NAT.

📂 Project Files

• Project_DPEI_final.topo: The main simulation file. Open this in Huawei eNSP.
• project documentation.pdf: Detailed documentation of the project requirements and addressing plan.
• Network_topology.jpeg: A visual diagram of the network topology.
• Enterprise Network Presentation.pptx: A presentation of the project

🚀 Getting Started

Prerequisites

• Huawei eNSP Simulator
• Wireshark (Optional, for packet analysis)

Installation

1. Clone the repository to your local machine.
2. Open eNSP and go to File > Open.
3. Select Project_DPEI_final.topo.
4. Power on the devices to start the simulation.

Login Credentials

• No specific login credentials are required for the devices (Console/VTY are open).