Huawei EchoLife HG520 User Manual page 28

Select the encapsulation mode and enter the VPI and VCI values.
If you enable Default Route, the office side server will
dynamically specify a route for the LAN side data.
By default, Default Route is enabled. If you select Disabled,
only the data whose route is included in the IP routing table will be
transmitted through the WAN interface. Other data will be discarded.
You need to enter the user name and password for PPP dialing.
It is recommended that you set Use DNS to Enabled, in this way,
HG520 will obtain the DNS address during the PPP dialing. Otherwise,
you need to enter addresses of the primary DNS server and the
secondary DNS server on the DNS configuration page manually.
It is recommended that you set Change Status to Start On Data,
in this way HG520 will establish the PPP dialing when receive a linking
Figure 3-10 PPPoA
Huawei Technologies Proprietary
19