Tenda 3G150M User Manual page 38

b. ADSL Virtual Dial-up(via PPPoE)
Connection Method: It shows the current connection
method.
User Name: Input the user name provided by your ISP.
Password: Enter the password provided by your ISP.
MTU: Maximum Transmission Unit. It is the size of largest
datagram that can be sent over a network. The default value
is 1492. Do NOT modify it unless necessary. But if some
specific website or web application software can not be open
or enabled, you can have a try to change the MTU value as
1450, 1400, etc.
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