Draytek Vigor3900 User Manual page 94

Connection
Detection Host
Connection
Detection Interval
Connection
Detection Retry
Vendor Class ID
(option 60)
DHCP Client ID
(option 61)
Specify DNS
DNS
Apply
Cancel
router for you to choose to send the request out.
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. This function is
available when Connection Detection Mode is set with
PING or HTTP.
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.
It is used to identify the vendor type and the configuration of
a DHCP client.
It used to specify a DHCP client identifier in a host
declaration, so that DHCP can find the host record by
matching against the client identifier.
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
address.
Save – click this button to save the setting.
– click the icon to remove the selected entry.
Click it to save the configuration and exit the dialog.
Click it to exit the dialog without saving the configuration.
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Vigor3900 Series User's Guide