mirror of
https://github.com/opnsense/docs
synced 2024-11-01 15:40:23 +00:00
57 lines
1.7 KiB
ReStructuredText
57 lines
1.7 KiB
ReStructuredText
==================================
|
|
Gateway groups / Multi WAN
|
|
==================================
|
|
Multi WAN scenarios are commonly used for failover or load balancing, but combinations
|
|
are also possible with OPNsense.
|
|
|
|
.. blockdiag::
|
|
:desctable:
|
|
|
|
blockdiag {
|
|
WAN_primary -- OPNsense;
|
|
OPNsense -- WAN_backup;
|
|
internet -- WAN_primary;
|
|
WAN_backup -- internet;
|
|
internet [shape="cloud"];
|
|
WAN_primary [shape="cisco.modem",label=""];
|
|
WAN_backup [shape="cisco.modem",label=""];
|
|
|
|
}
|
|
|
|
------------
|
|
WAN Failover
|
|
------------
|
|
WAN failover automatically switches between WAN connections in case of connectivity
|
|
loss (or high latency) of your primary ISP. As long as the connection is not good
|
|
all traffic will be routed of the next available ISP/WAN connection and when
|
|
connectivity is fully restored so will the routing switch back to the primary ISP.
|
|
|
|
|
|
------------------
|
|
WAN Load Balancing
|
|
------------------
|
|
Load balancing can be used to split the load between two (or more) ISPs. This
|
|
enhances the total available bandwidth and/or lowers the load on each ISP.
|
|
|
|
The principle is simple: Each WAN connection (gateway) gets a portion of the traffic.
|
|
The traffic can be divided equally or weighted.
|
|
|
|
------------------------------
|
|
Combining Balancing & Failover
|
|
------------------------------
|
|
It is also possible to combine Load Balancing with Failover in such scenarios
|
|
you will have 2 or more WAN connections for Balancing purposes and 1 or more for
|
|
Failover. OPNsense offers 5 tiers (Failover groups) each tier can hold multiple
|
|
ISPs/WAN gateways.
|
|
|
|
-------------
|
|
Configuration
|
|
-------------
|
|
For a how to configure read:
|
|
|
|
.. toctree::
|
|
:maxdepth: 2
|
|
:titlesonly:
|
|
|
|
how-tos/multiwan
|