Draytek Vigor2133 User Manual page 52

Or
Available settings are explained as follows:
Item
Enable
Display Name
Physical Mode
Physical Type
VLAN Tag insertion
40
Description
Choose Yes to invoke the settings for this WAN interface.
Choose No to disable the settings for this WAN interface.
Type the description for such WAN interface.
Display the physical mode of such WAN interface.
You can change the physical type for WAN2 or choose Auto
negotiation for determined by the system.
Enable – Enable the function of VLAN with tag.
The router will add specific VLAN number to all packets on
the WAN while sending them out.
Please type the tag value and specify the priority for the
Vigor2133 Series User's Guide