Table 18 Network > Wan > Internet Access Setup: Advanced Setup - ZyXEL Communications P-660HN FxZ Series User Manual

Chapter 5 WAN Setup
The following table describes the labels in this screen.
Table 18 Network > WAN > Internet Access Setup: Advanced Setup
LABEL
RIP & Multicast
Setup
RIP Direction
RIP Version
Multicast
ATM QoS
ATM QoS Type
Peak Cell Rate
Sustain Cell
Rate
Maximum Burst
Size
PPPoE
Passthrough
(PPPoE
encapsulation only)
MTU
MTU
Packet Filter
Incoming Filter Sets
74
DESCRIPTION
This section is not available when you configure the ZyXEL Device to be in
bridge mode.
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.
This field is not configurable if you select None in the RIP Direction field.
Select the RIP version from RIP-1, RIP-2B and RIP-2M.
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-v2 and IGMP-v3. Select None to disable it.
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.
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.
The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be
transmitted. Type the SCR, which must be less than the PCR. Note that system
default is 0 cells/sec.
Maximum Burst Size (MBS) refers to the maximum number of cells that can be
sent at the peak rate. Type the MBS, which is less than 65535.
This field is available when you select PPPoE encapsulation.
In addition to the ZyXEL Device's built-in PPPoE client, you can enable PPPoE
pass through to allow up to ten hosts on the LAN to use PPPoE client software
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.
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.
P-660HN-FxZ Series User's Guide