Chapter 6 Broadband
VMG3925-B10C/B30C User’s Guide
76
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)
between Finding Out More
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
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/PPPoA
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
PPPoE
PPP user name and password, WAN
IPv4/IPv6 IP address, routing feature,
DNS server, VLAN, QoS, and MTU
IPoE
WAN IPv4/IPv6 IP address, NAT, DNS
server and routing feature
Bridge
N/A
VLAN and QoS
Table 6 WAN Setup Overview
LAYER-2 INTERFACE
INTERNET CONNECTION
CONNECTION
DSL LINK TYPE
MODE
ENCAPSULATION
CONNECTION SETTINGS
Содержание VMG3925-B10C
Страница 16: ...16 PART I User s Guide ...
Страница 69: ...69 PART II Technical Reference ...
Страница 160: ...Chapter 10 Quality of Service QoS VMG3925 B10C B30C User s Guide 160 Figure 72 Classification Setup Add Edit ...
Страница 269: ...Chapter 37 Firmware Upgrade VMG3925 B10C B30C User s Guide 269 Figure 157 Error Message ...
Страница 287: ...287 PART III Appendices Appendices contain general information Some information may not apply to your device ...