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Chapter 5 WAN Setup
P-2612HNU-Fx User’s Guide
99
dynamically assigned by the ISP each time the ZyXEL Device 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 LAN and 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
two endpoints before the actual data exchange begins.
Finding Out More
• See Section 5.4 on page 113 for advanced technical information on WAN.
• See Chapter 3 on page 33 for WAN tutorials.
5.1.3 Before You Begin
You need to know your Internet access settings such as encapsulation and WAN IP
address. Get this information from your ISP.
5.2 The Layer 2 Interface Screen
The ZyXEL Device must have a layer-2 interface to allow users to use the Ethernet
WAN port or DSL port to access the Internet. The screen varies depending on the
interface type you select.
Note: The ATM and Ethernet layer-2 interfaces cannot work at the same time.