Draytek Vigor3900 User Manual page 96

Connection
Detection Interval
Connection
Detection Retry
IP Alias
Specify DNS
DNS
Add – click this button to have a field for adding a new IP
address.
Save – click this button to save the setting.
– click the icon to remove the selected entry.
Assign an interval period of time for each detecting.
Assign detecting times to ensure the connection of the WAN
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.
Type other IP addresses to be bound to this interface. This
setting is optional. If you have typed addresses here, you can
see and choose it in later web page settings (e.g.,
NAT>>Port Redirection/DMZ Host).
To add a new IP address, click Add. Type the IP address and
use the drop down list to specify the subnet mask. Next,
click Save. The new one will be added and displayed on the
field under the box.
Add – click this button to have a field for adding a new IP
address.
Save –click this button to save the setting.
– click the icon to remove the selected entry.
Enable – Click it to enable the function of DNS specified.
It is used for local service (e.g., NTP, ping diagnostic) or
used for forwarding packets to PC on LAN/VPN.
Disable – Click it to disable the function of DNS specified.
Add – click this button to have a field for adding a new IP
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Vigor3900 Series User's Guide