ntopng 6.6 (November 2025)

Breakthroughs

• New Autonomous Systems Dashboards, Sankeys, and comprehensive AS statistics
• Enhanced flow exporters and probes statistics with dedicated pages
• Improved SNMP devices polling
• Major flow collection code rework and optimizations
• Native support for ClickHouse Cloud with SSL connections
• Direct flows dump mode for real-time ClickHouse export

Improvements

• Add comprehensive AS ranking detection and alerting with configurable thresholds
• Implement ASN traffic rules for better AS-level traffic management
• Enhance ASN live flow aggregation
• Add conditional ASN aggregation type based on ASN mode
• Add ASN alerts to alert system
• Optimized SNMP access to interface names
• Add Transit Only AS filter and tables
• Add flow exporter/probe statistics with dedicated interfaces and exporters pages
• Optimize SNMP polling by removing unnecessary double polling on system and interfaces
• Add SNMP interface roles (core, distribution, access, etc.) for better network topology visualization
• Implement SNMP devices CSV import/export with SNMPv3 support
• Enhance asset inventory with SNMP Bridge MIB integration
• Optimize SNMP caching and interface name lookup
• Improve ClickHouse connection handling with SSL/TLS support for ClickHouse Cloud
• Optimize exporters/probes statistics with better data structures and reduced memory footprint
• Add support for nProbe Source ID (NPROBE_SOURCE_ID) custom field
• Implement --direct-flows-dump option to dump flows directly when collected
• Improve historical flow filtering and export capabilities
• Add throughput charts based on interface probe stats
• Improve Redis operations with optimized caching
• Add safety checks across flow collection and statistics code
• Optimize Host Pools with support for up to 4096 pools
• Improve packet dumper for traffic extraction
• Add more detailed flow exporter IP flow layout
• Add support for HTTP methods other than GET/POST; reworked and simplified code
• Improved chart visualization
• Slightly improved visualization on mobile

Changes

• Remove pre-NAT information display from flows and statistics
• Rework exporters and probes statistics implementation
• Unify all exporters interfaces pages
• Rework flow collection with better probe/exporter/interface tracking
• Change timeseries charts to stacked mode for better visualization
• Remove VLAN 0 from various displays
• Change MAC address formatting for consistency
• Update flow aggregation with new aggregation functions
• Add support for arbitrary nDPI protocol IDs in shapers
• Remove obsolete code and cleanup
• Disable various functionalities in ASN Mode

Fixes

• Fix SNMP interface name not correctly displayed
• Fix historical flow filters and export functionality
• Fix exporter interfaces statistics not working correctly
• Fix traffic rules modal size and resource loading
• Fix past timeseries not working correctly when opening pages
• Fix host pools timeseries charts
• Fix host location sorting and filtering in nEdge
• Fix nEdge footer and interface issues
• Fix flow historical filters and labels
• Fix download records in historical flows
• Fix traffic profile edit modal
• Fix various issues with asset queries and visualization
• Fix ClickHouse flow export date and retention
• Fix server ports formatting
• Fix several menus not correctly mapped
• Fix hidden hosts not working correctly
• Fix active monitoring RTT and throughput checks
• Fix ClickHouse connection timeout handling
• Fix policy test from system interface
• Fix DHCP leases page for nEdge
• Fix traffic profiles page glitches
• Fix various nEdge host sorting issues
• Fix historical flow incorrect labels and columns
• Fix assets not correctly dumped into the DB
• Fix various timeseries charts not correctly displayed
• Fix RRD top timeseries not correctly working in edge cases
• Fix various links not working
• Fix missing retention for hourly tables

nEdge

• Dynamic blacklist support
• Add dynamic blacklist with per-user/pool configuration
• Implement nEdge policy violation check
• Add toggle to block blacklisted flows
• Add max flow size configuration
• Improve multicast/broadcast forwarding configuration
• Fix inter-LAN filtering rules page
• Add Kea DHCP server support (in addition to ISC DHCP server)
• Improve DHCP leases visualization with Vue.js
• Add packet dump support for nEdge
• Fix location-based filtering and sorting
• Improve quotas reset functionality
• Add support for DHCP active leases pagination
• Fix captive portal issues
• Enhance traffic accounting for nEdge interfaces
• Rework nEdge shapers configuration (simplified)