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Page 101 / 427 Scroll up to view Page 96 - 100
P-2602H(W)(L)-DxA Series User’s Guide
Chapter 7 WAN Setup
101
7.5.1
Advanced Internet Access Setup
To edit your ZyXEL Device's advanced WAN settings, click the
Advanced Setup
button in
the
Internet Access Setup
screen. The screen appears as shown.
Figure 49
Advanced Internet Access Setup
The following table describes the labels in this screen.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Advanced Setup
Click this button to display the
Advanced WAN Setup
screen and edit more
details of your WAN setup.
Table 26
Internet Access Setup (continued)
LABEL
DESCRIPTION
Table 27
Advanced Internet Access Setup
LABEL
DESCRIPTION
RIP & Multicast
Setup
RIP Direction
Select the RIP direction from
None
,
Both
,
In Only
and
Out Only
.
RIP Version
Select the RIP version from
RIP-1
,
RIP-2B
and
RIP-2M
.
Multicast
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.
Page 102 / 427
P-2602H(W)(L)-DxA Series User’s Guide
102
Chapter 7 WAN Setup
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.
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 27
Advanced Internet Access Setup (continued)
LABEL
DESCRIPTION
Page 103 / 427
P-2602H(W)(L)-DxA Series User’s Guide
Chapter 7 WAN Setup
103
Figure 50
WAN More Connections
The following table describes the labels in this screen.
7.7
Traffic Redirect
Traffic redirect forwards traffic to a backup gateway when the ZyXEL Device cannot connect
to the Internet. An example is shown in the figure below.
Table 28
Advanced Internet Access Setup
LABEL
DESCRIPTION
#
This is an index number indicating the number of the corresponding connection.
Active
This field indicates whether the connection is active or not.
Name
This is the name you gave to the Internet connection.
VPI/VCI
This field displays the Virtual Path Identifier (VPI) and Virtual Channel Identifier
(VCI) numbers configured for this WAN connection.
Encapsulation
This field indicates the encapsulation method of the Internet connection.
Modify
Click the modify icon to edit the Internet connection settings. Click this icon on an
empty configuration to add a new Internet access setup.
Click the delete icon to remove the Internet access setup from your connection list.
Apply
Click
Apply
to save the changes.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Page 104 / 427
P-2602H(W)(L)-DxA Series User’s Guide
104
Chapter 7 WAN Setup
Figure 51
Traffic Redirect Example
The following network topology allows you to avoid triangle route security issues when the
backup gateway is connected to the LAN. Use IP alias to configure the LAN into two or three
logical networks with the ZyXEL Device itself as the gateway for each LAN network. Put the
protected LAN in one subnet (Subnet 1 in the following figure) and the backup gateway in
another subnet (Subnet 2). Configure filters that allow packets from the protected LAN
(Subnet 1) to the backup gateway (Subnet 2).
Figure 52
Traffic Redirect LAN Setup
Page 105 / 427
P-2602H(W)(L)-DxA Series User’s Guide
Chapter 7 WAN Setup
105
7.8
WAN Backup Setup
To configure your ZyXEL Device’s WAN backup, click
Network > WAN > WAN Backup
Setup
.
The following table describes the labels in this screen.
Table 29
WAN Backup Setup
LABEL
DESCRIPTION
Backup Type
Select the method that the ZyXEL Device uses to check the DSL connection.
Select
DSL Link
to have the ZyXEL Device check if the connection to the DSLAM is
up. Select
ICMP
to have the ZyXEL Device periodically ping the IP addresses
configured in the
Check WAN IP Address
fields.
Check WAN IP
Address1-3
Configure this field to test your ZyXEL Device's WAN accessibility. Type the IP
address of a reliable nearby computer (for example, your ISP's DNS server
address).
Note:
If you activate either traffic redirect or dial backup, you must
configure at least one IP address here.
When using a WAN backup connection, the ZyXEL Device periodically pings the
addresses configured here and uses the other WAN backup connection (if
configured) if there is no response.
Fail Tolerance
Type the number of times (2 recommended) that your ZyXEL Device may ping the
IP addresses configured in the
Check WAN IP Address
field without getting a
response before switching to a WAN backup connection (or a different WAN
backup connection).
Recovery Interval
When the ZyXEL Device is using a lower priority connection (usually a WAN backup
connection), it periodically checks whether or not it can use a higher priority
connection.
Type the number of seconds (30 recommended) for the ZyXEL Device to wait
between checks. Allow more time if your destination IP address handles lots of
traffic.

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