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6381-A4 Router Users Guide
31
Home
The first screen that appears after the log in screen is the Home page. From this screen you can
configure the LAN and WAN connections, configure the router's security, routing, and filtering,
access debugging tools, obtain the status of the router, and view the online help.
The footer displays router status, connection information, and other useful information.
Click
Log Out
to close the session,
Refresh
to update the status display, or
Quick Start
to
configure basic options.
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32
Quick Start
The
Quick Start
screen gives you immediate access to the options you are most likely to need to
specify or change. To access the
Quick Start
page, click the
Quick Start
button on the
Home
page.
The Quick Start page gives you quick access to setting up three types of connections. See New
Connection on page 33 for more connection options.
DHCP
– The address of the router is automatically assigned
PPPoE
– Your service provider has restricted access by name and password
Static
– Your service provider has supplied a specific network address for your router
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6381-A4 Router Users Guide
33
WAN Setup
Before the modem will pass any data between the LAN interface(s) and the WAN interface, the WAN
side of the modem must be configured. Depending upon your DSL service provider or your ISP, you
will need some (or all) of the following information before you can properly configure the WAN—
Your DSL line VPI and VCI
Your DSL encapsulation type and multiplexing
Your DSL training mode
For
PPPoA
or
PPPoE
users, you also need these values from your ISP—
Your username and password
For
RFC 1483 (Bridged
or
Routed IP Over ATM)
users, you may need these values from your ISP—
Your DSL fixed Internet IP address
Your Subnet Mask
Your Default modem
Your primary DNS IP address
Since multiple users can use the modem, the modem can simultaneously support multiple
connection types. Hence, the user must set up different profiles for each connection. The modem
supports the following protocols:
DHCP
PPPoA
PPPoE
Static
Bridge
CLIP
New Connection
A new connection is basically a virtual connection. Your router can support up to 8 different virtual
connections. If you have multiple different virtual connections, you may need to utilize the static
and dynamic routing capabilities of the router to pass data correctly.
To create a new connection:
1.
From the
Home
page, click
Setup
and then click
New Connection
.
The default PPPoE connection setup is displayed.
2.
In the
Type
dropdown select the protocol.
3.
Define the protocol specific options as described in the following connection procedures.
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6381-A4 Router Users Guide
34
PPPoE Connection Setup
PPPoE is defined in the Internet standard RFC 2516. It is a method of encapsulating PPP
packets over Ethernet. PPP (Point-to-Point Protocol) is a method of establishing a network
session between network hosts. It usually provides a mechanism of authenticating users.
PPPoE provides the ability to connect to a network of hosts over a simple bridging access device
to a remote access concentrator. With this model, each 6381 remote gateway uses its own PPP
stack. Access control, billing, and type of service control can all be done on a per-user rather than
per-site basis.
To configure the modem/router for PPPoE:
1.
From the
Home
page, click
Setup
and then click
New Connection
.
The default PPPoE connection setup is displayed.
2.
In the
Name
text box enter a unique name for the connection
The name must not have spaces and cannot begin with numbers.
3.
In the
Type
dropdown select
PPPoE
The PPPoE connection setup page is displayed.
4.
The
NAT
(Network Address Translation) and
Firewall
check boxes should be checked by
default.
NAT enables the IP address on the LAN side to be translated to IP address on the WAN
side. If NAT is disabled, you cannot access the Internet.
The firewall is designed to provide protection from unauthorized Internet users accessing
your network.
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35
5.
To configure the connection sharing type, select
Disable
,
Enable
or
VLAN
from the
Sharing
drop down.
Configure connection sharing as directed by your ISP.
DSL creates a permanent virtual connection (PVC) between network endpoints. This
connection may be shared where each device may have access to the packets, or the
connection may be segregated. In other words multiple connections over the same PVC are
supported. VLAN support requires that the ISP have VLANs supported and identified
Disable
Disables connection sharing
Enable
Enables connection sharing
VLAN
Sets up a virtual LAN. To configure the VLAN you will need to provide a VLAN ID
and Priority Bits. Priority is given to a VLAN connection from 0-7. All packets sent
over the VLAN connection have the Priority bits set to the configured value.
6.
In the
PPP Settings
section, enter values as supplied by your ISP.
PPP Settings:
Username
The username for the PPPoE access. This is provided by your DSL service
provider or your ISP.
Password
The password for the PPPoE access. This is provided by your DSL service
provider or your ISP.
Idle Timeout
Specifies that PPPoE connection should disconnect if the link has no activity
detected for the specified number of seconds. This field is used in conjunction with
the On Demand feature and is enabled only when the
On Demand
field is
checked. To disable the timeout feature, enter a zero in this field.
Authentication
Specifies the authentication protocol:
Auto (the protocol is selected by the Central Office modem)
PAP (Password Authentication Protocol)
CHAP (Challenge Handshake Authentication Protocol).
Microsoft CHAP v2 is also supported with the Auto and CHAP options. However,
MS CHAP v1 is not supported.
Keep Alive
When the
On Demand
option is not enabled, this value specifies the length of time
to wait without being connected to your provider before terminating the connection.
To ensure that the link is always active, enter a 0 in this field. You can also enter
any positive integer value in this field.
MTU
The Maximum Transmission Unit the DSL connection can send. It is a
negotiated
value. The PPPoE interface default MTU is 1492 (max) and PPPoA default MTU is
1500 (max). The minimum MTU value is 64.
On Demand
Enables On Demand mode. The connection disconnects if no activity is detected
after the specified idle timeout value. When checked, this field enables the
following fields:
Idle Timeout
Host Trigger
Valid Rx
Default
Gateway
If checked, this WAN connection acts as the default gateway to the Internet.
Enforce MTU
Check this box if you experience problems accessing the Internet over a PPPoE
connection. This feature will force all TCP traffic to conform with PPP MTU by
changing TCP Maximum Segment Size to the PPP MTU.
The
Enforce MTU
feature is enabled by default. It forces all TCP traffic to conform
with PPP MTU by changing TCP maximum segment size to PPP MTU. If it is
disabled, you may have issues accessing some Internet sites.

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