Draytek Vigor3900 User Manual page 100

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Choose a proper protocol, Static or DHCP. After finished
the settings in such page, you need to open the Static or
DHCP tab for configuring the settings there.
Type the IP address of PPTP server offered by your ISP.
Server Address
Type the user name offered by your ISP.
Username
Type the password offered by your ISP.
Password
MTU/MRU Type the value of MTU/MRU. The default value is 1452.
Debug Click Enable to display the PPTP debug message in syslog.
The default setting is Disable.
Always On Enable – Click it to enable the function of Always On. The
router will keep network connection all the time.
Disable – Click it to disable the function of Always On.
Connection Select a detecting mode for this WAN interface. There are
Detection Mode two ways PING and HTTP supported in Vigor router for
you to choose to send the request out.
Connection If you choose PING/HTTP as Connection Detection Mode,
Detection Host you have to specify the detection host address in this field.
Use the default setting.
Add – Click this button to have a field for adding a new IP
address. Assign an IP address or Domain name as a
destination to be detected whether the host is active (sending
reply to the router) or not. If not, the connection of WAN
interface will be regarded as breaking down.
Save – click this button to save the setting.
Connection Assign an interval period of time for each detecting.
Detection Interval
Connection Assign detecting times to ensure the connection of the WAN
Detection Retry interface. After passing the times you set in this field and no
reply received by the router, the connection of WAN
interface will be regarded as breaking down.
Apply After finished the PPTP configuration, please click Static or
DHCP (according to the PPTP Over Protocol setting) to
modify the Static/DHCP configuration for such profile.
Click it to save the configuration and exit the dialog.
– click the icon to remove the selected entry.
92 Vigor3900 Series User's Guide