Item Notes Description
With ICMP Checking, the system will check the connection by sending ICMP request
packets to the specified destination.
Loading Check
Enable Loading Check allows the router to ignore unreturned DNS Queries or ICMP
requests when WAN bandwidth is fully occupied. This is to prevent false link-down status.
Check Interval defines the transmitting interval between two DNS Query or
ICMP checking packets.
Value Range: 2 - 30 seconds.
Check Timeout defines the timeout of each DNS query/ICMP.
Value Range: 2 - 5 seconds.
Latency Threshold defines the threshold of responding time.
Value Range: 2000 - (1000* Check Timeout) ms.
Fail Threshold specifies the detected disconnection before the router
recognizes the WAN link is down. Enter a number of detecting disconnection
times to be the threshold before disconnection is acknowledged.
Value Range: 2 - 10 seconds.
Target1 (DNS1 set by default) specifies the first target of sending DNS
query/ICMP request.
DNS1: set the primary DNS to be the target.
DNS2: set the secondary DNS to be the target.
Gateway: set the Current gateway to be the target.
Other Host: enter an IP address to be the target.
Target2 (None set by default) specifies the second target of sending DNS
query/ICMP request.
None: to disable Target2.
DNS1: set the primary DNS to be the target.
DNS2: set the secondary DNS to be the target.
Gateway: set the Current gateway to be the target.
Other Host: enter an IP address to be the target.
IGMP Disabled by default. Select Auto to enable IGMP function.
Check  Enable to enable IGMP Proxy.
WAN IP Alias Disabled by default.
String format: IP
address (IPv4 type)
Check  to enable WAN IP Alias, and fill in the IP address you want to assign.
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