User Guide
http://www.peplink.com 
52 
Copyright @ 2017 Peplink 
DNS Servers 
Each ISP may provide a set of DNS servers for DNS lookups. This setting specifies the 
DNS (Domain Name System) servers to be used when a DNS lookup is routed through this 
connection. 
Selecting Obtain DNS server address automatically results in the DNS servers 
assigned by the WAN DHCP server being used for outbound DNS lookups over the 
connection. (The DNS servers are obtained along with the WAN IP address assigned by 
the DHCP server.) When Use the following DNS server address(es) is selected, you may enter 
custom DNS server addresses for this WAN connection into the DNS server 1 and DNS server 
2 fields. 
Cellular Settings 
SIM Card 
Indicate which SIM card this cellular WAN will use. Only applies to cellular WAN with 
redundant SIM cards. 
Preferred SIM 
Card 
If both cards were enabled on the above field, then you can designate the priority of the SIM 
card slots here. 
3G/2G 
This drop-down menu allows restricting cellular to particular band. Click the   button to 
enable the selection of specific bands. 
Authentication 
Choose from PAP Only or CHAP Only to use those authentication methods exclusively. 
Select Auto to automatically choose an authentication method. 
Data Roaming 
This checkbox enables data roaming on this particular SIM card. Please check your service 










