The Problem
The challenge was to design a secure, scalable multi-site enterprise network with controlled access and reliable services.
Integrated Networking Project (ESPRIT)
Network Infrastructure.
A complete enterprise network infrastructure simulated in GNS3, designed to connect multiple departments through a central backbone while providing secure communication, Internet access, critical internal services, and network supervision.
Security Routing Monitoring
Scope
Multi-Site Enterprise Lab
Core
OSPF + IPsec + ACL
Focus
Security + Reliability
The Solution
Built a GNS3 architecture with OSPF routing, NAT internet access, IPsec site-to-site VPN, ACL filtering, and core internal services.
Technologies Used
GNS3, OSPF, NAT, IPsec VPN, ACL, DHCP, plus web, database, file sharing, and monitoring services.
Implementation & Results
.png)
Backbone Topology
Multi-router OSPF mesh interconnecting different organizational departments.
Department Structure
Simulated PCs, switches, and VMs forming isolated subnets connected to the routers.
Dynamic Routing (OSPF)
Verified routing tables showing successfully converged OSPF and connected routes.
Secure Inter-site VPN
Active ISAKMP Security Associations verifying established IPsec tunnels.
Network Supervision
Live Grafana dashboards connected to Node Exporter visualizing network and system health metrics (CPU, RAM, Swap) across internal servers.
Loop Back