Draytek vigor2760 series User Manual page 111

Detection
MTU
RIP Protocol
Bridge Mode
WAN IP Network
Settings
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.
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 by– 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.
Routing Information Protocol is abbreviated as RIP
（RFC1058）specifying how routers exchange routing
tables information. Click Enable RIP for activating this
function.
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.
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. Type the additional
WAN IP address and check the Enable box. Then click OK
to exit the dialog.
95 Vigor2760 Series User's Guide