Operation Manual

Vigor2760 Series User’s Guide
88
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 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.
ISP Access Setup
Enter your allocated username, password and authentication
parameters according to the information provided by your
ISP.
Service Name - Type the description of the specific
network service.
Username – Type in the username provided by ISP in this
field.
Password – Type in the password provided by ISP in this
field.
Separate Account for ADSL – In default, WAN1 supports
VDSL2/ADSL and uses the same PPPoE account and
password for connection. If required, you can configure
another account and password for ADSL connection by
checking this box. If it is checked, the system will ask you
to type another group of account and password additionally.
PPP Authentication – Select PAP only or PAP or CHAP
for PPP.
IP Address From ISP
Usually ISP dynamically assigns IP address to you each
time you connect to it and request. In some case, your ISP
provides service to always assign you the same IP address
whenever you request. In this case, you can fill in this IP
address in the Fixed IP field. Please contact your ISP before
you want to use this function.