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6381-A4 Router Users Guide
41
Microsoft CHAP v2 is also supported with the Auto and CHAP options. However,
MS CHAP v1 is not supported.
MTU
The Maximum Transmission Unit the DSL connection can send. It is a negotiated
value. The PPPoA 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.
Debug
Enables PPPoA connection debugging facilities. The
Debug
option is used by ISP
technical support and ODM/OEM testers to simulate packets going through the
network from the WAN side.
PPP
Unnumbered
Specifies that the calling and answering routers will not request IP addresses.
PPP Unnumbered is a special feature. It enables the ISP to designate a block of
public IP addresses to the customer where it is statically assigned on the LAN
side. PPP Unnumbered is, in essence, like a bridged connection.
LAN
The LAN field is associated with the PPP Unnumbered field and is enabled when
the PPP Unnumbered field is checked. You can specify the LAN group the packets
need to go to when the PPP Unnumbered feature is activated.
7.
In the
PVC Settings
section, enter values as supplied by your ISP.
Please see PVC Settings from the PPPoE Setup procedure.
8.
Select the
Quality of Service (
QOS
).
Leave the default value if your ISP did not provide this information. Depending on the QoS
you select, you may also enter:
PCR (Peak Cell Rate)
SCR (Sustainable Cell Rate)
MBS (Maximum Burst Size)
CDVT (Cell Delay Variation Tolerance)
9.
To complete the connection you must now click the
Apply
button.
The
Apply
button will temporarily save this connection. To make the change permanent,
click
Tools
(at the top of the page) and select
System Commands
. On the
System
Commands
page, click
Save All
.
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6381-A4 Router Users Guide
42
Static Connection Setup
A static connection is used whenever a known static IP is assigned. The accompanying
information such as the subnet mask and the default gateway should also be specified. Up to
three Domain Name Server (DNS) addresses can also be specified. These servers give you
access to other web servers. The valid IP addresses range is from 1.0.0.0 to 223.255.255.254.
To configure the router for a Static connection:
1.
From the
Home
page, click
Setup
and then click
New Connection
.
The default PPPoE connection setup is displayed as the default setup.
2.
In the
Type
dropdown select
Static
The Static connection setup page is displayed.
3.
In the
Name
text box enter a unique name for the connection
The name must not have spaces and cannot begin with numbers.
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43
4.
Network Address Translation (
NAT
) and the
Firewall
options are enabled by default. Leave
these options enabled.
5.
In the
Static Settings
section, select the
Encapsulation
Type (
LLC
or
VC
) as supplied by
your ISP.
If you are not sure, just leave the default.
6.
Enter your enter your assigned
IP Address
, Subnet
Mask
,
Gateway
,
Default Gateway
, and
Domain Name Services (
DNS
) values as provided by your ISP.
7.
For the static configuration, you can also select a
Bridged
connection or a
Routed
connection as provided by your ISP.
8.
In the
PVC Settings
section, enter values for
VPI
and
VCI
as supplied by your ISP.
For more information, please see PVC Settings from the PPPoE Setup procedure.
9.
Select the quality of service (
QOS
). Leave the default value if your ISP did not provide this
information.
The
PCR
,
SCR
, and
MBS
fields are enabled/disabled depending on the QoS selection.
Enter the values provided by the ISP or leave the defaults.
10.
To complete the connection click
Apply
.
The
Apply
button will temporarily save this connection. To make the change permanent,
click
Tools
(at the top of the page) and select
System Commands
. On the
System
Commands
page, click
Save All
.
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6381-A4 Router Users Guide
44
DHCP Connection Setup
Dynamic Host Configuration Protocol (DHCP) allows the router to automatically obtain the IP
address from the server. This option is commonly used in situations where IP is dynamically
assigned and is not known prior to assignment.
To configure the router for a DHCP connection:
1.
From the
Home
page, click
Setup
and then click
New Connection
.
The default PPPoE connection setup is displayed as the default setup.
2.
In the
Type
dropdown select
DHCP.
The DHCP connection setup page is displayed.
3.
In the
Name
text box enter a unique name for the DHCP connection
The name must not have spaces and cannot begin with numbers.
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45
4.
Network Address Translation (
NAT
) and the
Firewall
options are enabled by default. Leave
these options enabled.
5.
If your DSL line is connected and your DSL provider is supporting DHCP, you can click the
Renew
button and the router will retrieve an IP Address, Subnet Mask, and Default Gateway
address.
At any time you can renew the DHCP address by clicking on the Renew button.
6.
In the
PVC Settings
section, enter values for
VPI
and
VCI
as supplied by your ISP.
For more information, please see PVC Settings from the PPPoE Setup procedure.
7.
Select the quality of service (
QOS
).
Leave the default value if your ISP did not provide this information.
Depending on the QoS
you select, you may also enter:
PCR
(Peak Cell Rate)
SCR
(Sustainable Cell Rate)
MBS
(Maximum Burst Size)
CDVT
(Cell Delay Variation Tolerance)
8.
To complete the connection click
Apply
.
The
Apply
button will temporarily save this connection. To make the change permanent,
click
Tools
(at the top of the page) and select
System Commands
. On the
System
Commands
page, click
Save All
.

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