Содержание

Version 14.0 Shooting Stars

Changes in version 14.0

  1. [BRAS] DHCP-Dual support. Description
  2. [BRAS] Support for L2TP termination. Description
  3. [DPI] Migration to DPDK 24.11, support for new NICs (Intel E830 200G, Intel E610, Napatech SmartNIC). Description
  4. [CLI] Added support for subs_id in commands: dhcp show, dhcp reauth, dhcp6 show, dhcp6 reauth, and dhcp disconnect. Description
  5. [DPI] New protocols added: AGORA_STREAMS(49314), AZAR_CALL(49315), WECHAT_CALL(49316), TEAMS_CALL(49317). List of protocols
  6. [DPI] Improved support for LINE_CALL, VYKE_CALL protocols. List of protocols
  7. [DPI] Fixed smartdrop behavior
  8. [DPI] Added validation for complex protocols. List of protocols
  9. [DPDK] Increased the maximum number of dispatchers to 32. Description
  10. [IPFIX/Netflow] Added the ability to change IPFIX/Netflow parameters without restarting fastDPI using the ipfix_reserved parameter. Description
  11. [FastRadius] It is now possible to set both bind_ipv6_address and bind_ipv6_subnet. If the Framed-IPv6-Prefix has a /128 mask, it is not checked against the bind_ipv6_subnet restriction. Description
  12. CLI command dev info now includes the name of the LAG that the port belongs to. Description
  13. [PCRF][PPP][Framed-pool] Added: DHCP option Client-Id now includes tunnel-IP as part of the subscriber ID. For more details, see sections IPv4 Pools Support and IPv6 pools support
  14. [IPFIX] Message aggregation added for IPFIX streams: FullFlow/DNS/META/NAT
  15. [IPFIX] Added parameter ipfix_mtu_limit to restrict maximum message size for IPFIX UDP packets. Description: ClickStream export Setup, Configuring Full NetFlow Export in IPFIX Format
  16. [IPFIX DNS] New elements added to IPFIX DNS: 224 (ipTotalLength) and 43823:3206 (DNS transaction id). Description
  17. [VRRP] Fixed proper handling of the vrrp_enable option change
  18. [BRAS][PPP] PPP session key is now compound: l2subs_id + tunnel-IP. For PPPoE sessions, tunnel IP = 0. CLI commands that use subs_id as a key (subs prop show, l2tp show session, l2tp term, etc.) may now return multiple entries with the same l2subs_id. Description
  19. [DPI] Added cloud protocols with identifiers 55296..58367
  20. [IPFIX] Fixed IPFIX exporter reinitialization bugs
  21. [BRAS][subs_grooming] Fixed potential crash due to race condition during fastDPI shutdown
  22. [CLI] Added commands to display mempool properties and statistics
        hal mempool props
    hal mempool stat

    DPDK must be built with statistics collection enabled to display mempool stats

  23. [BRAS][DHCP] Fixed crash when parsing Framed-Pool Renew response if it contains no DHCP options
  24. [PCRF][Acct] Fixed: Interim-Update sending is now disabled when Acct-Interim-Interval = 0 is explicitly set in the RADIUS response. For more details, see sections acct-interim-interval, PPPoE Radius Access-Request
  25. [VASE_CLI] Created a unified CLI for managing DPI, BRAS, DHCP (KEA), ROUTER (BIRD) with support for authorization and command logging via TACACS (VEOS 8.x required). Description
  26. [SNMP] Created a module for monitoring system components via SNMP
  27. [DPI] Added DOQ 49318 protocol (DNS-over-QUIC)
  28. [Router] Announcing subscriber white addresses for 1:1 NAT individually and after authentication. Description
  29. [PCRF] Added support for service 19 "DNS spoofing", profile required. Description
  30. [DPDK] Added dpdk_engine=6 (mqrx-bridge) — number of RSS dispatchers per bridge. Description
  31. [DPDK] Removed dedicated mempools. The fastdpi.conf option dpdk_emit_mempool_size is deprecated and no longer used.
  32. [VLAN-Rule] Moved vlan group data from UDR to SDR. Global rules for vlan drop/pass/hide/permit set by the previous CLI command vlan group were converted and moved from UDR to SDR, with removal from UDR. Description
  33. Up to version 14, only one built-in database UDR (User Data Repository) is used, intended for permanent storage of data about services, policings, and other FastDPI settings.
    Starting from Version 14, UDR is split into UDR and SDR. The split occurs automatically during version update.
    SDR (System Data Repository) is intended for storing FastDPI settings not related to subscribers. It can be considered that SDR is an extension of fastdpi.conf. No special activation of SDR is required — the necessary .mdb files are created automatically when the corresponding mode is enabled in fastdpi.conf.
  34. [VLAN] VLAN rules — added CLI commands. Description
  35. [IPv6] Added direction detection in combined traffic (IN+OUT on one port) based on the local flag for IP addresses. Enabled via combined_io_direction_mode option
  36. [BRAS] Fixed compatibility with the old format of service 18, where there were fewer protocols and both fields in the profile needed to be filled
  37. [DPI] Lowered detection priority for telegram_tls
  38. [DPI] Improved detection of WECHAT and WECHAT_CALL
  39. [BRAS][Framed-Route] Fixed: possible crash when freeing memory
  40. [BRAS] Refactored PCRF connectivity: in the new implementation, all connections are equal; an error on any triggers reconnection of all connections and a switch to another PCRF. Added CLI commands:
    1. pcrf connect show — show current status and accumulated statistics for PCRF connections.
    2. Force connection to the specified PCRF pcrf connect switch [<pcrf_index>], where <pcrf_indxed> is the index of the connection line in the auth_server parameter. If <pcrf_indxed> is not specified — defaults to 0.
      Description
  41. [IPFIX DNS] Added the ability to send DNS MX responses via IPFIX. Enabled by setting bit 3 (4) of the ajb_save_dns parameter. Description
  42. [DPI] Added FakeTLS protocol (49319) with validation
  43. [BRAS][DHCP] Changed: sliding window algorithm for rate limit
  44. [BRAS] Fixed: time comparison error when loading ip_prop from UDR
  45. [VLAN-Rule] Added support for 'any' instead of '*' when describing VLAN range. Description
  46. [DPI][LOG] Messages about insufficient SSL parsers are written to the slave log not for every event, but at a frequency of 1/50000.
  47. [DPI] Added protocols ZALO_CALL(49320) and VK_CALL(49321)
  48. [DPI] Fixed blocking in hard mode for SSL
  49. [Acct] Added attribute VASExperts-Service-Type. Radius acct start/interim/stop sends the authorization type in the VASExperts-Service-Type attribute. Description
  50. [CLI] Added: stat flow ip6 command to display IPv6 flow statistics. Description
  51. [CLI] Added: stat flow ip4 command to display IPv4 flow statistics. Analogous to the output in fastdpi_stat.log. Description
  52. [IPFIX] Fixed ExportTime formation error in IPFIX Fullflow
  53. [CLI] Added stat netflow command. Displays general statistics for Netflow/IPFIX (same as in fastdpi_stat.log under the "Statistics on NFLW_export" section). Description
  54. [DNS] Added support for substitution/blocking/dropping of DNS requests A, AAAA, MX, HTTPS. Description
  55. [CLI] Added stat firewall command. Description
  56. [DPI] Added BIGO_CDN protocol (49324)
  57. [DPI] Added UDP support for BIGOTV
  58. [PCRF][L2TP] Fixed: NAS attributes for L2TP during authorization
  59. [BRAS][L2TP] Fixed: data race when closing sessions
  60. [DPDK] Removed deprecated rx channels settings and related checks
  61. [IPFIX] Added configurable sending of drop octets/packets counters when generating IPFIX fullflow. Description
  62. [PCAP] Added capability to save traffic of a specified vlan using the ajb_save_vlan parameter. Description
  63. [DPIUTILS] Updated checknat utility. Description
  64. [DPIUTILS] Updated dns2dic utility with domain blocking support. Description
  65. [BRAS][L2TP] Fixed: data race during tunnel creation
  66. [Router] Fixed: interception and diversion of IPv6 packets to tap interfaces. Link-local addresses were not diverted to tap, even if explicitly specified in the router.subnet6 settings.
  67. [BRAS][L2TP] Fixed: length field in L2TP header for data packets. According to RFC, the len field in L2TP header is optional for data packets. Some L2TP client implementations do not understand data packets with the len field in the L2TP header. This fix adjusts FastDPI's behavior: if data packets from the subscriber arrive without the len field, then SSG will also send data packets without this field. If data packets from the subscriber contain the len field, SSG will include it as well.
  68. [BRAS] Fixed: sending commands from the pending_queue. In some cases (e.g., during state transitions of the pcrf monitor initial → connected), sending commands from the pending_queue was not triggered, which caused commands to "hang" in the queue indefinitely (until reconnection due to a socket error).
  69. Fixed a recently introduced error (affecting betas 4.6 and 4.7) in the session lifecycle that leads to resource exhaustion over time; an operational update from these versions (or rollback) is recommended.

Changes in version 14.1

DPI

  1. [DPI][ajb_save_vlan] Fixed an error when the engine operates in read-only mode
  2. [DPDK][tap_device] Fixed: setting the tx queue length using the dpdk_tx_queue_size option. Previously, the tx queue length of the TAP device was always set to 256, which caused errors on the VMware VMXNET3 Ethernet Controller: ETHDEV: Invalid value for nb_tx_desc(=256), should be: <= 4096, >= 512, and a product of 1
  3. [LAG] Fixed: added load balancing for pass packets
  4. [DPI][ip_node stg] Added statistics on bucket occupancy. The new CLI command stat storage ip4 detail outputs statistics on bucket filling in the IPv4 node storage
  5. [DPI] Added validation for the MULTIPROXY_STRONG protocol
  6. [DPI] Improved scalability on 128-core systems
  7. [DPI][log] Improved the logging subsystem in cases of log file overflow
  8. [DPI][tethering] Added tethering detection. The parameter tethering_ttl_allowed = 128:64 [hot] defines the list of allowed TTL values for subscriber traffic that are not considered tethering. Values are separated by ':'. The number of values is up to 256 (0–255). Description

BNG

  1. [BNG][framed-route] Fixed: Framed-Route delivery when a subscriber login is changed. Previously, when the login was changed, Framed-Route subnets remained attached to the old login, and all services and policing for Framed-Route subnets were taken from the old login.
  2. [BNG] Added the bras_disable_l3_auth option — an explicit prohibition of L3 auth in L2 BNG mode for all subscribers. Description
  3. [BNG] Added a new subscriber flag — prohibition of L3 auth for a specific subscriber. This flag can be set or cleared only via CLI: a new parameter disable_l3_auth=[1:0] has been added to the subs prop set command. Description
  4. [BNG][srcIP spoofing] Added filtering by source AS flags on the subs→inet path before packet processing to block operator-originated DDoS attacks with IP address spoofing. Description
  5. [BNG][PPP] Added database session utilization statistics to the ppp show stat command. Description
  6. [BNG][PCEF][Policing] Added configuration of common policing from parameters passed in the VasExperts-Policing-Profile attribute with the BR## prefix. Description
  7. [BNG][PCEF][Services] Added configuration of a personal (noname) user profile for services from parameters passed in the VasExperts-Service-Profile attribute with the BP## prefix. Description
  8. [BNG][PCEF][rating-group] New options (cold, fastDPI restart required):
    • rating_group_count — number of rating groups, 0 — RG disabled. Default value: 0
    • rating_group_max_subs — maximum number of subscribers with RG. Default value: 0 (RG disabled)
      Description
  9. [BNG][PCEF][rating-group][RADIUS Accounting] Output of RG statistics in RADIUS Accounting. RG statistics are transmitted in separate Interim-Update packets. Only non-zero RG data are sent. Description
  10. [BNG][PCEF][rating-group][CLI] Added the subs traffic stat CLI command. The command outputs billing statistics and rating group statistics for the specified subscriber, if enabled. Description
  11. [BNG][PCEF][rating-group][RADIUS Accept] Added configuration of the RG service during authorization. RG statistics accumulation can be enabled only if service 9 (bill stat) is enabled for the subscriber. Description
  12. [BNG][SHCV][hot] Added activity monitoring for static IP L2 subscribers (subscribers for whom RADIUS returned the VasExperts-L2-User=1 flag during L3 authorization). Description
  13. [BNG][DHCP][hot] New values are available for the bras_dhcp_check_secondary_keys option: 2 (check only opt82) and 4 (check only QinQ). Description
  14. [BNG][L2TP] Fixed: crash when receiving a duplicate out-of-order ctl packet
  15. [BNG][dhcp-relay] Added the ability to preserve the siaddr field value.
    New flag in the bras_dhcp_server option: keep_siaddr=1 — preserve the DHCP packet siaddr field. Example:
    bras_dhcp_server=188.227.73.42%eth0;arp_proxy=1;reply_port=67;keep_siaddr=1

    By default, the siaddr field may be modified to hide the real DHCP server address. Description

  16. [BNG][CLI] Added the subs db stat command to display L2 BNG database statistics. Description
  17. [BNG][DHCP6] Fixed: crash when processing DHCPv6 with an invalid UDP header length

NAT

  1. [CG-NAT] Added rx_dispatcher=3 — a method with uniform load balancing across an arbitrary number of threads with support for NAT 1:1 and the requirement to assign specific addresses. Description
  2. [CG-NAT] Accounting of translation lifetime in the fdpi_ctrl list status --service 11 --login UserName (--ip IP) command. Additional fields were added to the command output: active_sess_tcp — number of active NAT translations for TCP and active_sess_udp — number of active NAT translations for UDP.
    Translation activity is determined by the time of its last use and the lifetime parameter configured in the cluster options. Description
  3. [CG-NAT][CLI] Accounting of translation lifetime in the nat show <internal_ip> [<lifetime>] command. Displays a list of all NAT translations for the specified gray IP. Description

CLI

  1. [CLI] Added the subs bind show command to view the list of IP addresses bound to the login <login>. Description
  2. [CLI] Added the stat http CLI command. This command outputs internal statistics similar to those in fastdpi_stat.log. Description
  3. [CLI] Fixed the list status --service 11 (NAT) and nat show commands

IPFIX

  1. [IPFIX] Storage of TTL information from the IP packet header. Description
    TTL statistics added to Full NetFlow in IPFIX format:
    • Packet TTL, id 192. The field is used for both directions: subs2inet and inet2subs
    • Rating group, id 2020
  2. [IPFIX] Fixed an error in time conversion to unix format
  3. [IPFIX] New 64-bit fields added to Full NetFlow IPFIX. Description
    service_flags — information about the tags assigned to the flow in DPI. Detected tethering is reported via IPFIX in bit 1 of the service_flags field. 63 bits are available for further use.
    detection_flags — reserved for detection methods.
    action_flags — reserved for transmitting actions applied to the flow.
  4. [IPFIX] Fixed TTL transmission in Full NetFlow IPFIX in a single field with identifier 192 depending on direction. Description

Utilities

  1. [utils] Added the name2custom utility to view the list of protocols loaded from the cloud (as opposed to built-in ones)

RADIUS

  1. [FastRADIUS] Added support for logging to syslog. New parameter syslog_level in fdpi_radius.conf — the level of logging messages from the alert log to syslog. 0 — syslog logging disabled (default). Description
  2. [FastRADIUS] Added extraction of the 3GPP User Location Info RADIUS attribute and its export to IPFIX. Description