Project 2

Marapthon Reza Arap

Network Security[ Apr 2026 - May 2026 ]

Overview

Architected and simulated a complex, multi-cluster enterprise network infrastructure in Cisco Packet Tracer for a 100-day Marathon Live Streaming event, enforcing strict inter-cluster access policies, advanced Layer 3 switching, dynamic routing, and multiple security layers including ACL firewall rules, GRE tunneling, and NAT.

Key Features

◆4 isolated clusters (Studio, Sponsor, Kolaborator, Panitia) with VLSM subnets supporting up to 587 hosts per VLAN
◆Multilayer Switch SVI-based Inter-VLAN Routing with local DHCP pool distribution per cluster
◆OSPF Single Area 0 across 5 routers with default-information originate for Internet access
◆NAT Overload (PAT) translating internal private IPs to enable external streaming platform access
◆Extended ACL firewalls blocking specific clusters from reaching external YouTube and Twitch servers
◆GRE Tunnel (Tunnel 0) establishing encrypted communication channel between Studio and Sponsor bypassing main hub
◆Dedicated Syslog and NTP servers per cluster for centralized logging and clock synchronization