End-to-End Secure Enterprise Network Design

Project Overview: The objective of this project was to design, configure, and simulate a comprehensive and highly secure enterprise network architecture using Cisco Packet Tracer. The topology was built from scratch to reflect real-world corporate standards, focusing on strict network segmentation, scalability, and multi-layered security enforcement. Core Implementations & Technologies: Infrastructure & Routing: Designed a structured IP addressing scheme (Subnetting) and deployed OSPF Dynamic Routing for efficient, automated path selection across the enterprise. Site-to-Site VPN: Configured secure, encrypted VPN tunnels (between R2 and R8) to guarantee data confidentiality and secure communication over public networks. Centralized Authentication (AAA): Deployed TACACS+ and RADIUS servers to enforce strict, centralized access control, ensuring only authorized administrators can access network devices. Advanced Traffic Filtering (ACLs): Implemented complex Access Control Lists to strictly regulate traffic flow between different security zones (e.g., permitting only specific ICMP, SSH, and HTTP/HTTPS traffic from trusted networks while dropping unauthorized requests). Layer 2 Security & DMZ: Enforced internal LAN protections using Port Security and robust VLAN segmentation. Designed a secure DMZ for a public-facing Web Server to isolate it from the internal corporate network. Network Management: Integrated NTP for precise network-wide time synchronization and SYSLOG servers for centralized security auditing and event monitoring. Value Delivered: This simulation demonstrates the ability to build robust network infrastructures where security is integrated at every layer—from switch ports to routing protocols and external gateways—ensuring data integrity and protecting against unauthorized access. مهارات متعلقة بالعمل (Related Skills) أضف هذه المهارات في الخانة المخصصة لها: Cisco Packet Tracer Network Security VPN Configuration Access Control Lists (ACL) AAA (RADIUS/TACACS+) Routing & Switching (OSPF, VLANs)