ZyXEL Communications Corporation VMG1312T10C Manuel D’Utilisation

Chapter 5 WAN Setup

VMG1312-T10C User’s Guide

This section provides some technical background information about the topics covered in this 
chapter.

Be sure to use the encapsulation method required by your ISP. The Device supports the following 
methods.

The Device only implements the MAC Encapsulated Routing Link Protocol (ENET ENCAP) with the IP 
network protocol. IP packets get routed between the Ethernet interface and the WAN interface and 
then formatted to work in a bridged environment. For instance, it encapsulates routed Ethernet 

Dial String

Enter the phone number (dial string) used to dial up a connection to your service 
provider’s base station. Your ISP should provide the phone number.

For example, *99# is the dial string to establish a GPRS or 3G connection in Taiwan.

APN Code

Enter the APN (Access Point Name) provided by your service provider. Connections with 
different APNs may provide different services (such as Internet access or MMS (Multi-
Media Messaging Service)) and charge method.

You can enter up to 31 ASCII printable characters. Spaces are allowed.

Obtain an IP 
Address 
Automatically

Select this option If your ISP did not assign you a fixed IP address. 

Use the following 
static IP address

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

IP Address

Enter your WAN IP address in this field if you selected Use the following static IP 
address. 

Obtain DNS info 
dynamically  

Select this to have the Device get the DNS server addresses from the ISP automatically. 

Use the following 
static DNS IP 
address

Select this to have the Device use the DNS server addresses you configure manually.

Primary DNS 

server

Enter the first DNS server address assigned by the ISP.

Secondary DNS 

server

Enter the second DNS server address assigned by the ISP.

 Connection

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

Select On-Demand if  you do not want the connection up all the time and specify an 
idle time-out in the Max Idle Timeout field.

Max Idle Timeout 

This value specifies the time in minutes that elapses before the Device automatically 
disconnects from the ISP.

Apply

Click Apply to save your changes back to the Device.

Cancel

Click Cancel to return to the previous configuration.

Network Setting > Broadband > 3G Backup (continued)