Chapter 5 WAN Setup

The following table describes the labels in this screen.

Table 18 Network > WAN > Internet Access Setup: Advanced Setup

LABEL

DESCRIPTION

RIP & Multicast

This section is not available when you configure the ZyXEL Device to be in

Setup

bridge mode.

 

 

RIP Direction

RIP (Routing Information Protocol) allows a router to exchange routing

 

information with other routers. Use this field to control how much routing

 

information the ZyXEL Device sends and receives on the subnet.

 

Select the RIP direction from None, Both, In Only and Out Only.

 

 

RIP Version

This field is not configurable if you select None in the RIP Direction field.

 

Select the RIP version from RIP-1, RIP-2Band RIP-2M.

 

 

Multicast

Multicast packets are sent to a group of computers on the LAN and are an

 

alternative to unicast packets (packets sent to one computer) and broadcast

 

packets (packets sent to every computer).

 

Internet Group Multicast Protocol (IGMP) is a network-layer protocol used to

 

establish membership in a multicast group. The ZyXEL Device supports IGMP-

 

v1, IGMP-v2and IGMP-v3. Select None to disable it.

 

 

ATM QoS

 

 

 

ATM QoS Type

Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for

 

voice or data traffic. Select UBR (Unspecified Bit Rate) for applications that are

 

non-time sensitive, such as e-mail. Select VBR-RT(real-time Variable Bit Rate)

 

type for applications with bursty connections that require closely controlled delay

 

and delay variation. Select VBR-nRT(non real-time Variable Bit Rate) type for

 

connections that do not require closely controlled delay and delay variation.

 

 

Peak Cell Rate

Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak

 

Cell Rate (PCR). This is the maximum rate at which the sender can send cells.

 

Type the PCR here.

 

 

Sustain Cell

The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be

Rate

transmitted. Type the SCR, which must be less than the PCR. Note that system

 

default is 0 cells/sec.

 

 

Maximum Burst

Maximum Burst Size (MBS) refers to the maximum number of cells that can be

Size

sent at the peak rate. Type the MBS, which is less than 65535.

 

 

PPPoE

This field is available when you select PPPoE encapsulation.

Passthrough

In addition to the ZyXEL Device's built-in PPPoE client, you can enable PPPoE

(PPPoE

pass through to allow up to ten hosts on the LAN to use PPPoE client software

encapsulation only)

on their computers to connect to the ISP via the ZyXEL Device. Each host can

 

have a separate account and a public WAN IP address.

 

PPPoE pass through is an alternative to NAT for application where NAT is not

 

appropriate.

 

Disable PPPoE pass through if you do not need to allow hosts on the LAN to use

 

PPPoE client software on their computers to connect to the ISP.

 

 

MTU

 

 

 

MTU

The Maximum Transmission Unit (MTU) defines the size of the largest packet

 

allowed on an interface or connection. Enter the MTU in this field.

 

For ENET ENCAP, the MTU value is 1500.

 

For PPPoE, the MTU value is 1492.

 

For PPPoA and RFC 1483, the MTU is 65535.

 

 

Packet Filter

 

 

 

Incoming Filter Sets

 

 

 

74

 

P-660HN-F1 User’s Guide