Project 2

Marapthon Reza Arap

Network Security

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

Skills

Computer NetworkingCisco Packet TracerNetwork SecurityOSPFACL

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