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author | Christian Poessinger <christian@poessinger.com> | 2019-12-20 18:49:09 +0100 |
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committer | Christian Poessinger <christian@poessinger.com> | 2019-12-20 18:49:09 +0100 |
commit | b30e471f2889dcaad28476c664ab7f985a2bcfc9 (patch) | |
tree | 1ebc50cc1431137b68c341017c508f5665ddf79b /docs/system/flowaccounting.rst | |
parent | 3a428e3a2ce484c71f9419c1fcef3eea9c6dd565 (diff) | |
download | vyos-documentation-b30e471f2889dcaad28476c664ab7f985a2bcfc9.tar.gz vyos-documentation-b30e471f2889dcaad28476c664ab7f985a2bcfc9.zip |
flow-accounting: rewrite with new cfgcmd/opcmd syntax
Diffstat (limited to 'docs/system/flowaccounting.rst')
-rw-r--r-- | docs/system/flowaccounting.rst | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/docs/system/flowaccounting.rst b/docs/system/flowaccounting.rst deleted file mode 100644 index 9c876001..00000000 --- a/docs/system/flowaccounting.rst +++ /dev/null @@ -1,81 +0,0 @@ -.. _flow-accounting: - -NetFlow is a feature that was introduced on Cisco routers around 1996 that -provides the ability to collect IP network traffic as it enters or exits an -interface. By analyzing the data provided by NetFlow, a network administrator -can determine things such as the source and destination of traffic, class of -service, and the causes of congestion. A typical flow monitoring setup (using -NetFlow) consists of three main components: - -* Flow exporter: aggregates packets into flows and exports flow records towards - one or more flow collectors -* Flow collector: responsible for reception, storage and pre-processing of flow - data received from a flow exporter -* Analysis application: analyzes received flow data in the context of intrusion - detection or traffic profiling, for example - -For connectionless protocols as like ICMP and UDP, a flow is considered complete -once no more packets for this flow appear after configurable timeout. - -NetFlow is usually enabled on a per-interface basis to limit load on the router -components involved in NetFlow, or to limit the amount of NetFlow records -exported. - -VyOS supports flow accounting through NetFlow (version 5, 9 and 10) or sFlow. - -Flow Accounting ---------------- - -In order for flow accounting information to be collected and displayed for an -interface, the interface must be configured for flow accounting. The following -example shows how to configure ``eth0`` and ``bond3`` for flow accounting. - -.. code-block:: none - - set system flow-accounting interface eth0 - set system flow-accounting interface bond3 - - -NetFlow is a protocol originating from Cisco Systems. It works on level3. -VyOS supports version 5, 9 and 10 (IPFIX - IP Flow Information Export) - -NetFlow v5 example: - -.. code-block:: none - - set system flow-accounting netflow engine-id 100 - set system flow-accounting netflow version 5 - set system flow-accounting netflow server 192.168.2.10 port 2055 - -Displaying Flow Accounting Information -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Once flow accounting is configured on an interfaces it provides the ability to -display captured network traffic information for all configured interfaces. - -The following op-mode command shows flow accounting for eth0. - -.. code-block:: none - - vyos@vyos:~$ show flow-accounting interface eth0 - flow-accounting for [eth0] - Src Addr Dst Addr Sport Dport Proto Packets Bytes Flows - 0.0.0.0 192.0.2.50 811 811 udp 7733 591576 0 - 0.0.0.0 192.0.2.50 811 811 udp 7669 586558 1 - 192.0.2.200 192.0.2.51 56188 22 tcp 586 36504 1 - 192.0.2.99 192.0.2.51 61636 161 udp 46 6313 4 - 192.0.2.99 192.0.2.51 61638 161 udp 42 5364 9 - 192.0.2.99 192.0.2.51 61640 161 udp 42 5111 3 - 192.0.2.200 192.0.2.51 54702 22 tcp 86 4432 1 - 192.0.2.99 192.0.2.51 62509 161 udp 24 3540 1 - 192.0.2.99 192.0.2.51 0 0 icmp 49 2989 8 - 192.0.2.99 192.0.2.51 54667 161 udp 18 2658 1 - 192.0.2.99 192.0.2.51 54996 161 udp 18 2622 1 - 192.0.2.99 192.0.2.51 63708 161 udp 18 2622 1 - 192.0.2.99 192.0.2.51 62111 161 udp 18 2622 1 - 192.0.2.99 192.0.2.51 61646 161 udp 16 1977 4 - 192.0.2.99 192.0.2.51 56038 161 udp 10 1256 1 - 192.0.2.99 192.0.2.51 55570 161 udp 6 1146 1 - 192.0.2.99 192.0.2.51 54599 161 udp 6 1134 1 - 192.0.2.99 192.0.2.51 56304 161 udp 8 1029 1 - |