Developing a secure and scalable o internet service provider using CISCO networking technologies

Abstract

This project focuses on designing and simulating a secure Internet Service Provider (ISP) network using Cisco Packet Tracer, with an emphasis on layer 3 switching, VLAN segmentation, and Proper security configurations. The network was built using Cisco layer 3 switches, and Firewalls to ensure that the network is robust, scalable and secure. Key configurations include VLAN Trunking, Access Control Lists, DHCP setup, OSPF Configuration(for internal communication), BGP Configuration( for communication with the IIG network) and port security to mitigate common threats such as unauthorized access, spoofing, and DDOS attacks. The simulation successfully demonstrated a functional ISP network with proper traffic management redundancy and security policies. This project serves as a practical reference for implementing secure enterprise-grade networks using Cisco technologies. This internship is a compulsory course for the completion of my Bachelor’s degree at BRAC university and so, I have to submit this report on which my work as an intern Network Engineer at AccessTel will be evaluated. I have shared the work culture, the office environment and the company profile in this report. I have also mentioned about my learning and experience at AccessTel. It will provide a very comprehensive review of my experience and the projects I have been working on as an intern Network Engineer at AccesTel.