Public Preview: Azure VNet Flow Log - Filtering

VNet Flow Log captures IP traffic flowing through VNets, Subnets, & NICs for monitoring, troubleshooting, network optimization, security, and compliance needs. This release introduces advanced filtering capabilities in VNet Flow Logs, empowering users with unprecedented granular control over network traffic logging. With support for nine distinct criteria including IP addresses, ports, protocols, encryption state, allowed/denied actions, flow states, and traffic directions. This empowers organization to surgically capture only the traffic that truly matters most to their operations. This flexibility enables selective recording of intra/inter-VNet traffic, CIDR-based flows, inbound/outbound traffic or traffic flowing through specific ports and much more all through intuitive logical operations of AND and OR. By prioritizing critical flows and tailoring monitoring to user preferences, organizations gain faster, more actionable insights while maintaining robust network visibility This release aids significant operational efficiencies by dramatically reducing log volume and noise. By targeting only relevant traffic logs, organizations can streamline troubleshooting, minimize data processing overhead, and lower total cost of ownership (TCO) through reduced storage requirements. The simplified log management not only preserves essential visibility but also ensures compliance and security monitoring remain uncompromised. environments. [Learn more. ](https://aka.ms/filtering)