Chapter 6 Broadband

The following table describes the labels in this screen.

Table 8 Broadband: Add/Edit: Bridge Mode

LABEL

DESCRIPTION

General

 

 

 

Active

Select this to activate the WAN configuration settings.

 

 

Name

Specify a descriptive name of up to 15 alphanumeric characters for this

 

connection.

 

 

Type

Select whether it is a VDSL, ADSL, or Ethernet connection.

 

 

Mode

Select Routing (default) from the drop-down list box if your ISP give

 

you one IP address only and you want multiple computers to share an

 

Internet account.

 

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 Firewall, DHCP server and NAT on traffic

 

from the selected LAN port(s).

 

 

ATM PVC Configuration

 

 

VPI

The valid range for the VPI is 0 to 255. Enter the VPI assigned to you.

 

 

VCI

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.

 

 

DSL Link Type

This field is not editable. EoA (Ethernet over ATM) uses an Ethernet

 

header in the packet, so that you can have multiple services/

 

connections over one PVC. You can set each connection to have its own

 

MAC address or all connections share one MAC address but use

 

different VLAN IDs for different services.

 

 

Encapsulation

Select the method of multiplexing used by your ISP from the drop-

Mode

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 or UBR With PCR for applications that are

Category

non-time sensitive, such as e-mail.

 

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.

 

 

84

 

VSG1432-B101 Series User’s Guide