Cradlepoint IBR600 User Manual page 15

User Manual / IBR600/IBR650
• Spillover: This was the default algorithm in older (version
3) firmware. Load is always given to devices with the most
available bandwidth. The estimated bandwidth rate is based
on a combination of the upload and download configuration
values and the observed capabilities of the device.
• Data Usage: This mode works in concert with the Data Usage
feature (Internet > Data Usage).
The router will make a best effort to keep data usage between
interfaces at a similar percentage of the assigned data cap in
the data usage rule for each interface, rather than distributing
sessions based solely on bandwidth. For proper functioning you need to create data usage rules for each WAN device
you will be load balancing. Make certain to select the "Use with Load Balancing" checkbox in the data usage rule
editor.
ON DEMAND
Typically, modem connections are not always on.
When the On Demand mode is selected a connection
to the Internet is made as needed. When On
Demand is not selected a connection to the Internet
is always maintained.
WAN VERIFY
If this is enabled, the router will check that the
highest priority active WAN interface can get to the
Internet even if the WAN connection is not actively
being used. If the interface goes down, the router
will switch to the next highest priority interface
available. If this is not selected, the router will still
failover to the next highest priority interface but
only after the user has attempted to get out to the
Internet and failed.
Idle Check Interval: The amount of time between
each check. (Default: 30 seconds. Range: 10-3600
seconds.)
Monitor while connected: (Default: Off) Select from the following dropdown options:
• Passive DNS (modem only): The router will take no action until data is detected that is destined for the WAN.
When this data is detected, the data will be sent and the router will check for received data for two seconds. If no
data is received the router behaves as described below under Active DNS.
• Active DNS (modem only): A DNS request will be sent to the DNS servers. If no data is received, the DNS request
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