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Page 31 / 85 Scroll up to view Page 26 - 30
TD-W8901N
150Mbps Wireless N ADSL2+ Modem Router User Guide
23
•
Status:
If you want to use a designed VC, you should activate it.
•
VPI:
Identifies the virtual path between endpoints in an ATM network. The valid range is
from 0 to 255. Please input the value provided by your ISP.
•
VCI:
Identifies the virtual channel endpoints in an ATM network. The valid range is from
32 to 65535 (1 to 31 is reserved for well-known protocols). Please input the value
provided by your ISP.
•
PVCs Summary:
Click the button, and you can view the summary information about the
PVCs.
•
QoS:
Select the Quality of Service types for this Virtual Circuit, including CBR (Constant
Bit Rate), UBR (Unspecified Bit Rate) and VBR (Variable Bit Rate). These QoS types are
all controlled by the parameters specified below, including PCR (Peak Cell Rate), SCR
(Sustained Cell Rate) and MBS (Maximum Burst Size), please configure them according
to your needs.
¾
Encapsulation:
There are four connection types: Dynamic IP Address, Static IP Address,
PPPoA/PPPoE and Bridge Mode. Please choose the designed type that you want to use.
After that, you should follow the configuration below to proceed.
4.3.1.1 Dynamic IP Address
Select this option if your ISP provides you an IP address automatically. This option is typically
used for Cable services. Please enter the Dynamic IP information accordingly.
Figure 4-7
¾
Encapsulation:
Select the encapsulation mode for the Dynamic IP Address, you can leave it
default.
¾
NAT:
Select this option to Enable/Disable the NAT (Network Address Translation) function for
this VC. The NAT function can be activated or deactivated per PVC basis.
Page 32 / 85
TD-W8901N
150Mbps Wireless N ADSL2+ Modem Router User Guide
24
¾
Default Route:
If enable this function, the current PVC will be considered as the default
gateway to internet from this device.
¾
TCP MTU Option:
Enter the TCP MTU as your desire.
¾
Dynamic Route:
Select this option to specify the RIP (Routing Information protocol) version
for WAN interface, including
RIP1
,
RIP2-B
and
RIP2-M
. RIP2-B and RIP2-M are both sent in
RIP2 format, the difference is that RIP2-M using Multicast, while RIP2-B using Broadcast
format.
•
Direction:
Select this option to specify the RIP direction.
None
is for disabling the RIP
function.
Both
means the ADSL Router will periodically send routing information and
accept routing information, and then incorporate them into routing table.
IN only
means
the ADSL Router will only accept but will not send RIP packet.
OUT only
means the
ADSL Router will only send but will not accept RIP packet.
¾
Multicast:
Select IGMP version, or disable the function. IGMP (Internet Group Multicast
Protocol) is a session-layer protocol used to establish membership in a multicast group. The
ADSL ATU-R supports IGMP version 1 (
IGMP v1
),
IGMP v2
and
IGMP v3
. Select “Disabled”
to disable it.
4.3.1.2 Static IP Address
Select this option if your ISP provides static IP information to you. You should set static IP address,
IP subnet mask, and gateway address in the screen below (shown in Figure 4-8).
Figure 4-8
Page 33 / 85
TD-W8901N
150Mbps Wireless N ADSL2+ Modem Router User Guide
25
)
Note:
Each IP address entered in the fields must be in the appropriate IP form, which is four IP octets
separated by a dot (x.x.x.x), such as 192.168.1.100. The Router will not accept the IP address if it
is not in this format.
4.3.1.3 PPPoA/PPPoE
Select this option if your ISP requires you to use a PPPoE connection. This option is typically used
for DSL services. Select Dynamic PPPoE to obtain an IP address automatically for your PPPoE
connection. Select Static PPPoE to use a static IP address for your PPPoE connection. Please
enter the information accordingly.
Figure 4-9
¾
Servicename:
Enter a name to mark current connection, or you can leave it blank.
¾
Username:
Enter your username for your PPPoA/PPPoE connection.
¾
Password:
Enter your password for your PPPoA/PPPoE connection.
Page 34 / 85
TD-W8901N
150Mbps Wireless N ADSL2+ Modem Router User Guide
26
¾
Encapsulation:
For both PPPoA/PPPoE connection, you need to specify the type of
Multiplexing, either LLC or VC Mux.
¾
Bridge Interface:
Activate the option, and the Router can also work in Bridge mode.
¾
Connection:
For PPPoA/PPPoE connection, you can select
Always on
or
Connect
on-Demand
or
Connect Manually
. Connect on demand is dependent on the traffic. If there is
no traffic (or
Idle
) for a pre-specified period of time), the connection will tear down
automatically. And once there is traffic send or receive, the connection will be automatically
on.
¾
Static/Dynamic IP Address:
For PPPoA/PPPoE connection, you need to specify the public
IP address for this ADSL Router. The IP address can be either dynamically (via DHCP) or
given IP address provided by your ISP. For Static IP, you need to specify the IP address,
Subnet Mask and Gateway IP address.
¾
Default Route:
You should select
Yes
to configure the PVC as the default gateway to internet
from this device.
4.3.1.4 Bridge Mode
If you select this type of connection, the modem router can be configured to act as a bridging
device between your LAN and your ISP. Bridges are devices that enable two or more networks to
communicate as if they are two segments of the same physical LAN.
Figure 4-10
)
Note:
After you finish the Internet configuration, please click
SAVE
to make the settings take effect.
4.3.2 LAN
Choose “
Interface Setup
→
LAN
” menu, and you will see the LAN screen (shown in Figure 4-11).
Please configure the parameters for LAN ports according to the descriptions below.
Page 35 / 85
TD-W8901N
150Mbps Wireless N ADSL2+ Modem Router User Guide
27
Figure 4-11
¾
Router Local IP:
These are the IP settings of the LAN interface for the device. These settings
may be referred to as Private settings. You may change the LAN IP address if needed. The
LAN IP address is private to your internal network and cannot be seen on the Internet.
•
IP Address:
Enter the Router’s local IP Address, then you can access to the Web-based
Utility via the IP Address, the default value is 192.168.1.1.
•
IP Subnet Mask:
Enter the Router’s Subnet Mask, the default value is 255.255.255.0.
•
Dynamic Route:
Select this option to specify the RIP (Routing Information protocol)
version for LAN interface, including
RIP1
,
RIP2-B
and
RIP2-M
. RIP2-B and RIP2-M are
both sent in RIP2 format, the difference is that RIP2-M using Multicast, while RIP2-B
using Broadcast format.
•
Direction:
Select this option to specify the RIP direction.
None
is for disabling the RIP
function.
Both
means the ADSL Router will periodically send routing information and
accept routing information, and then incorporate them into routing table.
IN only
means
the ADSL Router will only accept but will not send RIP packet.
OUT only
means the
ADSL Router will only send but will not accept RIP packet.

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