USER MANUAL
Peplink Balance Series
http://www.peplink.com - 51 - Copyright © 2010 Peplink
10.2 WAN Health Check
To ensure traffic is routed to healthy WAN connections only, Peplink Balance provides the functionality to
periodically check the health of each WAN connection.
The Health Check settings for each WAN connection can be independently configured via Network >
Interfaces > WAN:
Health Check Settings
Method
This setting specifies the health check method for the WAN connection. The value
of Method can be configured as Disabled, Ping or DNS Lookup. The default
method is DNS Lookup.
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
The ICMP PING packets will be issued to test the connectivity with a configurable target IP address or
host name. 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 host names 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
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