Draytek Vigor2910 Series User Manual page 45

Keep WAN
Connection
WAN Connection
Detection
MTU
RIP Protocol
WAN IP Network
Settings
Vigor2910 Series User's Guide
Due to the absence of the ISDN interface in some models, the
ISDN dial backup feature and its associated setup options are not
available to them. Please refer to the previous part for further
information.
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.
Always On - If the broadband connection is no longer available,
the backup line will be activated automatically and always on until
the broadband connection is restored. We recommend you to
enable this feature if you host a web server for your customers'
access.
Normally, this function is designed for Dynamic IP environments
because some ISPs will drop connections if there is no traffic
within certain periods of time. Check Enable PING to keep alive
box to activate this function.
PING to the IP - If you enable the PING function, please specify
the IP address for the system to PING it for keeping alive.
PING Interval - Enter the interval for the system to execute the
PING operation.
Such function allows you to verify whether network connection is
alive or not through ARP Detect or Ping Detect.
Mode – Choose ARP Detect or Ping Detect for the system to
execute for WAN detection.
Ping IP – If you choose Ping Detect as detection mode, you have
to type IP address in this field for pinging.
TTL (Time to Live) – Displays value for your reference. TTL
value is set by telnet command.
It means Max Transmit Unit for packet. The default setting is
1442.
Routing Information Protocol is abbreviated as RIP（RFC1058）
specifying how routers exchange routing tables information. Click
Enable RIP for activating this function.
This group allows you to obtain an IP address automatically and
allows you type in IP address manually.
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.
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