Billion Electric Company BiGuard 30 - Manual (Page 23)

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In the above example, PC 1 (IP_192.168.2.2) and PC 2 (IP_192.168.2.3) are
connected to the Internet via WAN1 (IP_230.100.100.1) and WAN2
(IP_213.10.10.2) on BiGuard 30. You can configure BiGuard 30 to balance the load
of each WAN port with one of two mechanisms:
1. Session (by session/by traffic/weight of link capability)
2. IP Hash (by traffic/weight of link capability)
The IP Hash mechanism will ensure that the traffic from the same source IP address
and destination IP address will go through the same WAN port. This is useful for
some server applications that need to identify the source IP address of the client.
By balancing the load between WAN1 and WAN2, your BiGuard 30 can ensure that
outbound traffic is efficiently handled by making sure that both ports are equally
sharing the load, preventing situations where one port is completely saturated by
outbound traffic.
Please refer to appendix H for example settings.
2.4 Inbound Traffic
Learn how BiGuard 30 can handle inbound traffic in the following section.
2.4.1 Inbound Fail Over
Configuring BiGuard 30 for Inbound Fail Over allows you to ensure that incoming
traffic is uninterrupted by having BiGuard 30 default to WAN2 should WAN1 fail.