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Figure 78 Network Setting > Broadband > Add/Edit New WAN Interface (ADSL over ATM-Bridge Mode)
The following table describes the fields in this screen.
Table 32 Network Setting > Broadband > Add/Edit New WAN Interface (ADSL over ATM-Bridge Mode)
LABEL
DESCRIPTION
General
Click this switch to enable or disable the interface. When the switch goes to the right
function is enabled. Otherwise, it's not.
Name
Enter a service name of the connection.
Type
Select ADSL over ATM as the interface that you want to configure. The Zyxel Device uses the
ADSL technology for data transmission over the DSL port.
Mode
Select Bridge when your ISP provides you more than one IP address and you want the
connected computers to get individual IP address from ISP's DHCP server directly. If you select
Bridge, you cannot use routing functions, such as QoS, Firewall, DHCP server and NAT on traffic
from the selected LAN port(s).
ATM PVC Configuration (These fields appear when the Type is set to ADSL over ATM.)
VPI [0-255]
The valid range for the VPI is 0 to 255. Enter the VPI assigned to you.
VCI [32-65535]
The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local management of ATM
traffic). Enter the VCI assigned to you.
Encapsulation
Select the method of multiplexing used by your ISP from the drop-down list box. Choices are:
• LLC/SNAP-BRIDGING: In LCC encapsulation, bridged PDUs are encapsulated by identifying the
type of the bridged media in the SNAP header.
• VC/MUX: In VC multiplexing, each protocol is carried on a single ATM virtual circuit (VC). To
transport multiple protocols, the Zyxel Device needs separate VCs. There is a binding between a
VC and the type of the network protocol carried on the VC. This reduces payload overhead
since there is no need to carry protocol information in each Protocol Data Unit (PDU) payload.
Service
Select UBR Without PCR for applications that are non-time sensitive, such as email.
Category
Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data traffic.
Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do not require
closely controlled delay and delay variation.
Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections that
require closely controlled delay and delay variation.
Chapter 6 Broadband
VMG/XMG Series User's Guide
127
, the
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