ZyXEL Communications NBG4115 User Manual

Chapter 8 WAN

User’s Guide

Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure 
transfer of data from a remote client to a private server, creating a Virtual Private 
Network (VPN) using TCP/IP-based networks.

PPTP supports on-demand, multi-protocol and virtual private networking over 
public networks, such as the Internet.

Password

Type the password associated with the user name above.

Retype to 
Confirm

Type your password again to make sure that you have entered is 
correctly. 

Nailed-Up 
Connection

Select Nailed-Up Connection if you do not want the connection to time 
out.

Idle Timeout

This value specifies the time in minutes that elapses before the router 
automatically disconnects from the PPPoE server.

DNS Servers
First DNS 
Server

Second DNS 
Server 

Select From ISP if your ISP dynamically assigns DNS server information 
(and the NBG4115's WAN IP address). The field to the right displays the 
(read-only) DNS server IP address that the ISP assigns. 

Select User-Defined if you have the IP address of a DNS server. Enter 
the DNS server's IP address in the field to the right. If you chose User-
Defined, but leave the IP address set to 0.0.0.0, User-Defined 
changes to None after you click Apply. If you set a second choice to 
User-Defined, and enter the same IP address, the second User-
Defined changes to None after you click Apply. 

Select None if you do not want to configure DNS servers. If you do not 
configure a DNS server, you must know the IP address of a computer in 
order to access it.

WAN MAC 
Address

The MAC address section allows users to configure the WAN port's MAC 
address by using the NBG4115’s MAC address, copying the MAC address 
from a computer on your LAN or manually entering a MAC address. 

Factory default

Select Factory default to use the factory assigned default MAC 
Address.

Clone the 
computer’s 
MAC address - 
IP Address

Select Clone the computer's MAC address - IP Address and enter 
the IP address of the computer on the LAN whose MAC you are cloning. 
Once it is successfully configured, the address will be copied to the rom 
file. It will not change unless you change the setting or upload a 
different ROM file. 

Set WAN MAC 
Address

Select this option and enter the MAC address you want to use.

Apply

Click Apply to save your changes back to the NBG4115.

Reset

Click Reset to begin configuring this screen afresh.

Table 37   Network > WAN > Internet Connection: PPPoE