Operation Manual

VigorBX 2000 Series User’s Guide
73
WAN Connection
Detection
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.
MTU It means Max Transmit Unit for packet.
Path MTU Discovery – It is used to detect the maximum MTU
size of a packet not to be segmented in specific transmit
path.
Click Detect to open the following dialog.
Path MTU to – Type the IP address as the specific transmit
path.
MTU reduce size – It determines the decreasing size of MTU
value. For example, the number specified in this field is “8”.
The maximum MTU size is “1500”. After clicking the
“detect” button, the system will calculate and get the
suitable MTU value such as 1500, 1492, 1484 and etc.,
automatically.
Detect – Click it to detect a suitable MTU value
Accept – After clicking it, the detected value will be
displayed in the field of MTU.
RIP Protocol
Routing Information Protocol is abbreviated as RIP（RFC1058）
specifying how routers exchange routing tables information.
Click Enable RIP for activating this function.
Bridge Mode If you choose Bridged IP as the protocol, you can check this
box to invoke the function. The router will work as a bridge
modem.
WAN IP Network Settings 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 32 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.