User Guide
http://www.peplink.com 
89 
Copyright @ 2017 Peplink 
DNS Servers 
This setting specifies the WAN IP addresses on which the DNS server of the Peplink 
Balance should listen. 
If no addresses are selected, the inbound link load balancing feature will be disabled and 
the Peplink Balance will not respond to DNS requests. 
To specify and/or modify the IP addresses on which the DNS server should listen, click the 
button that corresponds to DNS Server, and a selection screen will be displayed: 
To specify the Internet IP addresses on which the DNS server should listen, select the 
desired WAN connection then select the desired associated IP addresses. (Multiple items in 
the list can be selected by holding CTRL and clicking on the items.) 
Click Save to save the settings when configuration is complete. 
Zone Transfer 
This setting specifies the IP address(es) of the secondary DNS server(s)authorized to 
retrieve zone records from the DNS server of the Peplink Balance. 
The zone transfer server of the Peplink Balance listens on TCP port 53. 
The Peplink Balance serves both the clients that are accessing from the specified IP 
addresses, and the clients that are accessing its LAN interface. 
Routing Control 
by Subnet 
Database 
When this function is enabled, the system will check to see if an incoming DNS client is 
within any WAN's ISP subnet. Only the matched WAN(s)'s IP addresses will be returned. 
Note that this feature is available only when a subnet database has been defined. 
Default SOA / NS 
Click the button to define a default SOA / NS record for all domain names. 
When defining a default SOA record, Name Server IP Address is optional. If left blank, the 
Address (A) record for the same server should be defined manually in each domain. 
For defining default NS records, the host [domain] indicates that this record is for the 
domain name itself without a sub-domain prefix. To add a secondary NS server, just create 
a second NS record with the Host field left empty. When the entered name server is a fully 
qualified domain name (FQDN), the IP Address field will be disabled. 
Default 
Connection 
Priority 
Default Connection Priority defines the default priority group of each WAN connection in 
resolving A records. It applies to Address (A) records which have the Connection Priority 
set to Default. Please refer to Section 17.3.9 for details. 
The WAN connection(s) with the highest priority (smallest number) will be chosen. Those 
with lower priorities will not be chosen in resolving A records unless the higher priority ones 
become unavailable. 
To specify the primary and backup connections, click the  button that corresponds to 
Default Connection Priority. A selection screen screen will appear. 
Each WAN connection is associated with a priority number. Click Save to save the settings 
when configuration is complete. 
Domain name 
This section shows a list of domain names to be hosted by the Peplink Balance. Each 
domain can have its “NS”, “MX” and “TXT” records, and its sub-domains’ “A” and “CNAME” 
records. Add a new record by clicking the New Domain Name button. Click on a domain 
name to edit. Press the red X to remove a domain name. 
New Domain Name 
Upon clicking the New Domain Name button, and the following screen will appear: 










