FastNetMon Advanced 2.0.372 has been released with a critical fix and several improvements. This release addresses a stability issue that could cause FastNetMon to crash when processing malformed ASN feed data. We’ve also enhanced IPv6 address formatting, improved ASN allocation performance, and made refinements across Netflow, IPFIX, and sFlow logic. Additionally, this release introduces support for Juniper SRX via new IPFIX fields and resolves several minor bugs related to integrations and platform support.
Changes:
- Added support for IPv6 sudo sudo fcli show ip_asn command
- Addressed crash when ASN feed has malformed data
- Reworked print_ipv6_address to use Boost based functions to print IPv6 addresses as our own IPv6 compression broke up addresses like 0000::1/128 and printed them as :0001/128
- Moved away from lookup_tree_32bit_with_dynamically_allocated_payload_t to lookup_tree_32bit_with_payload_t which stores data in leafs and does not use intermediate pointers. Some speed up for ASN allocation is expected. As side affect we have improved sanity checks for input data
- Re-enabled usage stats for offline licenses
- Enabled sflow_track_sampling_rate by default
- Small improvement for performance of sFlow sampling rate tracking
- Addressed bug in Mikrotik API based integration which used /128 instead of /32
- Removed Debian 9, 10 and Ubuntu 16.04 as we deprecated them long time ago
- Implemented move constructor to address issue with gcc 13 and LLVM, GitHub #1013
- Added support for IPFIX fieds with IDs 85 and 86 to implement Juniper SRX support
- Fixed content type for Prometheus endpoint to be text/plain
- Reduced logging level for: Successfully loaded flexible threshold
- Added log level checking for Netflow v9 logic as it may be root cause of performance degradation
- Added log level checking for IPFIX logic as it may be root cause of performance degradation
- Suppressed error ‘process_ipfix_sets returned error’ when we have no template to continue processing for other flowsets
- Added logic to agent address matches in Flow Cpec filters
- Added input_interface_matches and output_interface_matches for Flow Spec based filter
- Added input_interfaces and output_interfaces to Flow Spec structure