Multi-Branch Enterprise Network with VLANs, Routing, Security & ISP Integration

Designed and implemented a full enterprise network infrastructure using Cisco Packet Tracer, simulating a real-world multi-site organization with secure and scalable architecture.

⚙️ Key Features:

Multi-site network connected via WAN (ISP simulation)

VLAN segmentation for different departments (HR, Finance, Sales, IT, Operations)

Inter-VLAN routing using Layer 3 switches

Dynamic routing between branches

Network security using Firewall (ASA) and ACLs

Redundancy with EtherChannel and dual core switches

Wireless network integration (Access Points & mobile devices)

Server infrastructure (DHCP, DNS, Web, FTP)

? What I Did:

Designed hierarchical network (Core – Distribution – Access)

Configured VLANs and trunking

Implemented routing protocols and IP addressing plan

Secured network traffic using firewall and policies

Ensured high availability and fault tolerance

? Result:

A scalable, secure, and efficient enterprise-grade network capable of handling multiple departments and branches with optimized performance.