ZyXEL Communications P-2602H - Manual (Page 101)

Chapter 7 WAN Setup
P-2602H(W)(L)-DxA User’s Guide
101
7.6 WAN More Connections
The ZyXEL Device allows you to configure more than one Internet access connection. To
configure additional Internet access connections click Network > WAN > More
Connections. The screen differs by the encapsulation you select.
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).
IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to
establish membership in a multicast group. The ZyXEL Device supports both IGMP
version 1 (IGMP-v1) and IGMP-v2. 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 Rate 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
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.
Zero
Configuration
This feature is not applicable/available when you configure the ZyXEL Device to
use a static WAN IP address or in bridge mode.
Select Yes to set the ZyXEL Device to automatically detect the Internet connection
settings (such as the VCI/VPI numbers and the encapsulation method) from the
ISP and make the necessary configuration changes.
Select No to disable this feature. You must manually configure the ZyXEL Device
for Internet access.
PPPoE
Passthrough
(PPPoE
encapsulation
only)
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.
Back Click Back to return to the previous screen.
Apply Click Apply to save the changes.
Cancel Click Cancel to begin configuring this screen afresh.
Table 23 Advanced Internet Access Setup (continued)
LABEL DESCRIPTION