What You Need To Know - ZyXEL Communications VMG9827-B50A User Manual

Table 10 WAN Setup Overview
LAYER-2 INTERFACE
CONNECTION
ADSL over ATM
Ethernet

6.1.2 What You Need to Know

The following terms and concepts may help as you read this chapter.
WAN IP Address
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).
ATM
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).
PTM
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 Introduction
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
can use IPv4/IPv6 dual stack to connect to IPv4 and IPv6 networks, and supports IPv6 rapid deployment
(6RD).
Chapter 6 Broadband
INTERNET CONNECTION
DSL LINK TYPE MODE
EoA Routing
Bridge
N/A Routing
Bridge
VMG4927-B50A / VMG9827-B50A / VMG3927-B50B User's Guide
ENCAPSULATION
PPPoE/PPPoA
IPoE/IPoA
N/A
PPPoE
IPoE
N/A
72
CONNECTION SETTINGS
ATM PVC configuration, PPP
information, IPv4/IPv6 IP address,
routing feature, DNS server, VLAN,
and MTU
ATM PVC configuration, IPv4/IPv6 IP
address, routing feature, DNS server,
VLAN, and MTU
ATM PVC configuration
PPP user name and password, WAN
IPv4/IPv6 IP address, routing feature,
DNS server, VLAN, and MTU
WAN IPv4/IPv6 IP address, NAT, DNS
server and routing feature
VLAN
38
IP addresses. The VMG