Every point at which packets begin, traverse, and end has the potential to become a gateway that adversaries can exploit and win command and control of critical network assets. Network security pros must protect these pathways to enhance security and promote a robust Zero Trust architecture. To advance Zero Trust, modern methods, including identity-driven segmentation, ZT network access (ZTNA), and microsegmentation, help create granular microperimeters that protect against modern, evolving threats. This report delves into the essential network tools, packet-level controls, and other security technologies that security and risk professionals should employ as their organization moves to embrace a Zero Trust strategy.