Sierra Wireless AirLink RV50 Series User Manual page 123

Field
Primary DNS
Secondary DNS
DNS Proxy
Rev 1 Dec. 17
Figure 5-10: ACEmanager: LAN > Global DNS
Description
Primary Mobile Network Operator's DNS IP Address. This and the secondary DNS are
generally granted by the mobile network along with the Network IP.
Secondary Mobile Network Operator's DNS IP Address
Determines whether or not the AirLink gateway is used as a DNS proxy server.
Note: Using the AirLink gateway as a proxy DNS server can help reduce mobile network
data use.
Options are:
Enable (default) —All connected DHCP clients (PPP, PPPoE, USBNET, and Ethernet)
•
send their DNS IP address resolution requests to the AirLink gateway. The AirLink
gateway performs DNS lookups on behalf of the DHCP client.
If the AirLink gateway is able to resolve the request, it sends a response to the
•
DHCP client.
If the AirLink gateway does not have the necessary information to resolve the
•
request, it sends the request to the DNS server configured in the DNS Override
field. When the AirLink gateway receives a response, it forwards it to the DHCP
client and saves the information so that it can resolve the same request in the
future.
Disable—All connected DHCP clients send their DNS IP address resolution requests
•
to the DNS server received from the mobile network or the alternate server specified
by DNS Override, if enabled. The AirLink gateway is not used as a DNS server.
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LAN Configuration
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