Draytek VIGOR2820 series, User Manual, Page: 57 / 269

Vigor2820 Series User’s Guide 49
None - Disable the backup function.
Packet Trigger - The backup line is not on until a packet from a
local host triggers the router to establish a connection.
This setting is available for n model only.
PPP Setup PPP Authentication - Select PAP only or PAP or CHAP for PPP.
Idle Timeout - Set the timeout for breaking down the Internet after
passing through the time without any action. This setting is active
only when the
Active on demand option for Active Mode is
selected in WAN>> General Setup page.
IP Address
Assignment
Method(IPCP) Usually ISP dynamically assigns IP address to you each time you
connect to it and request. In some case, your ISP provides service
to always assign you the same IP address whenever you request.
In this case, you can fill in this IP address in the Fixed IP field.
Please contact your ISP before you want to use this function.
WAN IP Alias - If you have multiple public IP addresses and
would like to utilize them on the WAN interface, please use WAN
IP Alias. You can set up to 8 public IP addresses other than the
current one you are using. Notice that this setting is available for
WAN1 only. Type the additional WAN IP address and check the
Enable box. Then click OK to exit the dialog.
Click Yes to use this function and type in a fixed IP address in the
box.
Fixed IP - Click Yes to use this function and type in a fixed IP
address in the box of Fixed IP Address .
Fixed IP Address - Type a fixed IP address.
WAN IP Network
Settings Obtain an IP address automatically – Click this button to obtain
the IP address automatically.
Specify an IP address – Click this radio button to specify some
data.
IP Address – Type the IP address.
Subnet Mask – Type the subnet mask.