FastNetMon Advanced 2.0.384

FastNetMon

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September 16, 2026

Release_notes_FastNetMon_Advanced_2.0.384

Release date: 16 September, 2026
Version: 2.0.384

FastNetMon Advanced 2.0.384 introduces a new Linux psample traffic collection plugin, multi-endpoint flow forwarding, enhanced BGP configuration for hostgroup announcements, and additional Prometheus monitoring capabilities. This release also improves web callback handling, expands API functionality, simplifies ASN database updates, and includes multiple packaging, CLI, and reliability fixes.

Changes:

Improved Debian and Ubuntu packages by adding installed size and homepage metadata, correcting license information, and fixing the package maintainer email
Added a new plugin capable of reading traffic from the Linux psample facility
Deprecated Debian 11
Added HTTP 200 and 201 as successful response codes for web callback queries
Added Prometheus metrics to track successful and failed web callback calls: fastnetmon_web_callback_calls_total and fastnetmon_web_callback_calls_failed
Fixed the path used by sudo fcli show asn_networks xxx to use /var/lib/fastnetmon instead of the legacy /var/cache/fastnetmon location
Marked Slack_notifications_url and Telegram_notifications_bot_token as sensitive fields
Added more detailed diagnostics when a TCP connection for the flow forwarder cannot be established
Added support for sending traffic to multiple endpoints using the flow_forwarder capability
Refactored packet forwarding logic into a dedicated function to avoid code duplication
Fixed missing fastnetmon_host_traffic_flows section in the Prometheus endpoint
Added support for controlling AS_PATH for total hostgroup announcements using global gobgp_as_path_hostgroup_networks_ipv4 and gobgp_as_path_hostgroup_networks_ipv6 configuration options
Added per-hostgroup bgp_as_path_hostgroup_networks_ipv4 and bgp_as_path_hostgroup_networks_ipv6 configuration options to control AS_PATH for total hostgroup announcements
Added support for the include_all_fields flag for the /api/v2/fields/main endpoint to expose hidden fields
Added web callback notifications for total hostgroups
Added logic to download the ASN database directly from FastNetMon without relying on fill_dictionaries
Added logic to create /var/lib/fastnetmon for Red Hat family distributions
Upgraded fcli to address a bug that limited query size to 5000 bytes