Draytek Vigor2866 Series Quick Start Manual page 24

On the next page as shown below, please select the WAN interface that you use.
If DSL interface is used, please choose WAN1; if Ethernet interface is used,
please choose WAN2; if wireless 2.4G/5G connection is used, please choose
WAN3 or WAN4; if 3G USB modem is used, please choose WAN5 or WAN6. Then
click Next for next step. Each WAN interface will bring up specific configuration
page. Here, we take WAN1 as an example.
Click Next to go to the following page. You have to select the appropriate
Internet access type according to the information from your ISP. For example,
you should select PPPoA mode if the ISP provides you PPPoA interface. In
addition, the field of For ADSL Only will be available only when ADSL is detected.
Then click Next for next step.
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