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Health Check Settings
Method This setting specifies the health check method for the WAN connection. This value can
be configured as Disabled, PING, DNS Lookup, or HTTP. The default method is DNS
Lookup. For mobile Internet connections, the value of Method can be configured as
Disabled or SmartCheck.
Health Check Disabled
When Disabled is chosen in the Method field, the WAN connection will always be considered as up. The
connection will NOT be treated as down in the event of IP routing errors.
Health Check Method: PING
ICMP ping packets will be issued to test the connectivity with a configurable target IP address or hostname. A
WAN connection is considered as up if ping responses are received from either one or both of the ping hosts.
PING Hosts This setting specifies IP addresses or hostnames with which connectivity is to be tested
via ICMP ping. If Use first two DNS servers as Ping Hosts is checked, the target ping host
will be the first DNS server for the corresponding WAN connection. Reliable ping hosts
with a high uptime should be considered. By default, the first two DNS servers of the
WAN connection are used as the ping hosts.
Health Check Method: DNS Lookup