Pppoe - Sierra Wireless AirLink ES440 User Manual

ALEOS 4.4.0 Software Configuration User Guide
Field
DNS Proxy
DNS Override
Alternate Primary
DNS
Alternate Secondary
DNS
Alternate DNS Port
114
Description
Determines whether or not the AirLink device is used as a DNS proxy server.
Note: Using the AirLink device as a proxy DNS server can help reduce mobile network
data use.
Options are:
•
Enable (default) —All connected DHCP clients (PPP, PPPoE, Wi-Fi, USBNET, and
Ethernet) send their DNS IP address resolution requests to the AirLink device. The
AirLink device performs DNS lookups on behalf of the DHCP client.
•
If the AirLink device is able to resolve the request, it sends a response to the
DHCP client.
•
If the AirLink device 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 device 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 device is not used as a DNS server.
Overrides the Mobile Network Operator's DNS address with the DNS server configured in
the Alternate Primary DNS and Alternate Secondary DNS fields.
Options are:
•
Disable (default)—Mobile Network Operator's DNS server is used
•
Enable—Alternate DNS server is used
Configure the primary DNS server to use instead of the Mobile Network Operator's DNS
server
Configure the secondary DNS server to use instead of the Mobile Network Operator's DNS
server
If you want to specify the port on the connected device that the AirLink device sends IP
address resolution responses to:
1. Ensure that the DNS Override
2. Enter the desired port number in this field.
3. Click Apply.
When this field is set to 53 (default) or 0, packets are sent to port 53, the standard DNS
port.

PPPOE

PPPoE (Point-to-Point Protocol over Ethernet) allows a point-to-point connection
while using Ethernet. Just like the dial up protocol on which it is based, PPPoE
can use traditional user name and password authentication to establish a direct
connection between two Ethernet devices on a network (e.g., your AirLink device
and your computer or router).
examples for PPPoE with your AirLink device:
field is set to Enable.
4116359