Enhancing ZTNA with Advanced DPI for Application Awareness

This whitepaper discusses the integration of advanced deep packet inspection (DPI) technology within zero-trust network access (ZTNA) frameworks to enhance application and threat awareness. It begins by outlining the principles of zero-trust and the methodologies such as least privilege access (LPA) and microsegmentation that contribute to creating secure virtual network perimeters. The paper details the concept of continuous adaptive trust, emphasizing the importance of real-time visibility into network traffic to establish trust based on user identity and context. Furthermore, it introduces next-gen DPI as a solution for extracting real-time network analytics, which strengthens ZTNA's mechanisms for adaptive trust and supports dynamic context-aware policies. The document also presents various use cases of DPI in ZTNA applications, including secure service edge and IIoT-based smart manufacturing environments. Additionally, it provides guidance on the decision-making process regarding whether to build or buy DPI solutions for zero-trust implementations.