ZyXEL nbg-4615 用户指南

Chapter 16 WAN

NBG4615 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.

Get 
automatically 
from ISP 

Select this option If your ISP did not assign you a fixed IP address. This 
is the default selection. 

Use Fixed IP 
Address

Select this option If the ISP assigned a fixed IP address. 

My WAN IP 

Address

Enter your WAN IP address in this field if you selected Use Fixed IP 
Address. 

WAN DNS Assignment
First DNS 
Server

Second DNS 
Server 

Select From ISP if your ISP dynamically assigns DNS server information 
(and the NBG4615'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 NBG4615’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.

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 NBG4615.

Cancel

Click Cancel to begin configuring this screen afresh.

Table 55   Network > WAN > Internet Connection: PPPoE Encapsulation (continued)