Tóm tắt Luận văn Thạc sĩ: Chuyển đổi IPv4-IPv6 trong mạng băng rộng VNPT và khía cạnh bảo mật liên quan

The relentless expansion of the internet and the proliferation of connected devices have brought the global digital infrastructure to a critical juncture, marked by the imminent exhaustion of IPv4 addresses. This necessitates a fundamental shift towards IPv6, a next-generation protocol designed to overcome IPv4's limitations by offering an exponentially larger address space, improved routing efficiency, enhanced security features, and better support for mobility and multicast. The transition, however, presents significant technical and operational challenges, particularly for large-scale broadband networks that must maintain seamless service delivery during the migration. This academic work investigates the critical process of IPv4-IPv6 transition within the context of the VNPT broadband network, with a particular focus on the associated security considerations. It aims to provide a comprehensive analysis of transition mechanisms, emphasizing the practical implementation of solutions like Dual Stack to ensure robust and secure network evolution.

Telecommunications engineers, network administrators, and academic researchers focused on network protocol migration, broadband infrastructure, and cybersecurity in large-scale network environments.

This thesis addresses the pressing challenge of migrating from the IPv4 to the IPv6 protocol, a crucial endeavor driven by the depletion of IPv4 addresses and the advanced capabilities offered by IPv6, including its vast addressing capacity and inherent security improvements. The study begins by detailing the fundamental structures of both IPv4 and IPv6 addresses and packet formats, establishing the foundational knowledge necessary for understanding the transition. It then systematically explores various key solutions for IPv4-IPv6 transition, specifically analyzing Dual Stack, IPv6 tunneling over IPv4, and address translation mechanisms such as DSTM and NAT-PT. The core of this research is an application-oriented investigation into the practical implementation of these transition strategies within the VNPT broadband network, with a detailed case study focusing on the Hải Dương region. This includes presenting the proposed IPv6-IPv4 Dual Stack provision plan for customers and outlining the configuration of dual-stack routing in a simulated environment to demonstrate feasibility and performance. A significant aspect of the work is its dedicated focus on security considerations within the IPv6 framework, acknowledging that while IPv6 offers improved security features like IPSec, its deployment introduces new vulnerabilities that must be addressed. By proposing specific approaches and examining their implications for a real-world telecommunications provider, this thesis offers valuable insights and practical guidance for network engineers and operators navigating the complex transition, ensuring both continuity of service and enhanced network security.