ZyXEL Communications VMG5313-B10A/ VMG5313-B30A User Manual

Chapter 6 Broadband

VMG5313-B10A/-B30A Series User’s Guide

The following terms and concepts may help as you read this chapter.

The WAN IP address is an IP address for the VMG, which makes it accessible from an outside 
network. It is used by the VMG to communicate with other devices in other networks. It can be 
static (fixed) or dynamically assigned by the ISP each time the VMG tries to access the Internet.

If your ISP assigns you a static WAN IP address, they should also assign you the subnet mask and 
DNS server IP address(es).

Asynchronous Transfer Mode (ATM) is a WAN networking technology that provides high-speed data 
transfer. ATM uses fixed-size packets of information called cells. With ATM, a high QoS (Quality of 
Service) can be guaranteed. ATM uses a connection-oriented model and establishes a virtual circuit 
(VC) between Finding Out More

Packet Transfer Mode (PTM) is packet-oriented and supported by the VDSL2 standard. In PTM, 
packets are encapsulated directly in the High-level Data Link Control (HDLC) frames. It is designed 
to provide a low-overhead, transparent way of transporting packets over DSL links, as an 
alternative to ATM.

IPv6 (Internet Protocol version 6), is designed to enhance IP address size and features. The 
increase in IPv6 address size to 128 bits (from the 32-bit IPv4 address) allows up to 3.4 x 10

38

 IP 

addresses. The VMG can use IPv4/IPv6 dual stack to connect to IPv4 and IPv6 networks, and 
supports IPv6 rapid deployment (6RD). 

ADSL over ATM

EoA

Routing

PPPoE/PPP0A

ATM PVC configuration, PPP 
information, IPv4/IPv6 IP address, 
routing feature, DNS server, VLAN, 
QoS, and MTU

IPoE/IPoA

ATM PVC configuration, IPv4/IPv6 
IP address, routing feature, DNS 
server, VLAN, QoS, and MTU

Bridge

N/A

ATM PVC configuration, and QoS

Ethernet

N/A

Routing

IPoE/PPPoE

PPP information, IPv4/IPv6 IP 
address, routing feature, DNS 
server, VLAN, QoS, and MTU

Bridge

N/A

VLAN and QoS

WAN Setup Overview