User's Manual
© 2008 4IPNET, INC .
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4.1.5 WAN Traffic Settings
The section is for administrators to configure the control over the entire system’s traffic though the WAN interface
(WAN1 and WAN2 ports).
Available Bandwidth on WAN Interface:
Uplink: It specifies the maximum uplink bandwidth that can be shared by clients of the system.
Downlink: It specifies the maximum downlink bandwidth that can be shared by clients of the system.
Connection Detection & WAN Failover:
Target for detecting Internet connection: These URLs are used by the system as the targets to detect
Internet connection, for alerting Internet disconnection and WAN Failover. At least one URL is required to enable
WAN Failover.
Enable Load Balancing: Outbound load balancing is supported by the system. When enabled, the system will
allocate traffic between WAN1 and WAN2 dynamically according to designed algorithms based on the weight
ratio.
WAN1 Weight: The percentage of traffic through WAN1. (Range: 1~99; by default, it is 50)
Base: The weight ratio between WAN1 and WAN2 can be based on Sessions, Packets or Bytes. Packets
and Bytes are based on historic data. New connection sessions will be distributed between WAN1 and WAN2
by a weight ratio using random number.
Enable WAN Failover: Normally a Service Zone uses WAN1 as it primary WAN interface. When enabled and
WAN2 is available, WAN1's traffic will be routed to WAN2 when WAN1 connection is down. On the other hand, a
Service Zone’s policy could also use WAN2 as its interface; in that case, if WAN2 is down, the WAN2's traffic
under its policy will also be routed to WAN1.
Fall back to WAN1 when WAN1 is available again: If WAN Failover is enabled, the traffic will be routed to
WAN2 automatically when WAN1 connection fails. When fall back to WAN1 is enabled, the routed traffic will
be connected back to WAN1 when WAN1 connection is recovered.
Warning of Internet Disconnection: When enabled, there is a text box available for the administrator to enter