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Page 56 / 94 Scroll up to view Page 51 - 55
TD-W8951NB
150Mbps Wireless N ADSL2+ Modem Router (Annex B) User Guide
48
Step 3:
Select the rule type you want from the drop-down list.
Step 4:
Enter the local and public IP addresses in the corresponding fields.
Step 5:
After that, click
SAVE
to make the entry take effect.
Other operations for the entries as shown in Figure 4-31:
Select the index of assigned entry, and click the
DELETE
button to delete the entry.
Click the
BACK
button to return to the previous screen.
Click the
CANCEL
button to cancel the configuration which is made just now.
4.4.4 QoS
Choose “
Advanced Setup
→
QoS
”, you can configure the QoS in the next screen. QoS helps to
prioritize data as it enters your router. By attaching special identification marks or headers to
incoming packets, QoS determines which queue the packets enter, based priority. This is useful
when there are certain types of data you want to give higher priority, such as voice data packets
give higher priority than Web data packets. This option will provide better service of selected
network traffic over various technologies.
Page 57 / 94
TD-W8951NB
150Mbps Wireless N ADSL2+ Modem Router (Annex B) User Guide
49
Figure 4-32
¾
QoS:
Select this option to Activate/Deactivate the IP QoS on different types (IP ToS and
DiffServ).
¾
Summary:
Click the button to view the configurations of QoS.
¾
Rule:
Configure the rules for QoS. If the traffic complies with the rule, then the Router will take
the corresponding action to deal with it.
•
Rule Index:
Select the index for the rule you want to configure.
•
Active:
Activate the rule. The rule can take effect only when it is activated.
Page 58 / 94
TD-W8951NB
150Mbps Wireless N ADSL2+ Modem Router (Annex B) User Guide
50
•
Application:
Select the application that the rule aimed at.
•
Physical Ports:
Select the port whose traffic flow are controlled by the rule.
•
Destination MAC & IP & Mask & Port Range:
Enter the IP information about the
Destination host for the rule.
•
Source MAC & IP & Mask & Port Range:
Enter the IP information about the Source
host for the rule.
•
Protocol ID:
Select one among TCP/UDP, TCP, UDP or ICMP protocols for the
application.
•
Vlan ID Range:
Enter the Vlan range, and the rule will be effective to the selected Vlans.
•
IPP/DS Field:
Select the type of the action to assign the priority.
When you select IPP/TOS, you can assign the priority via IP information. IP QoS function is
intended to deliver guaranteed as well as differentiated Internet services by giving network
resource and usage control to the Network operator.
•
IP Precedence Range:
Enter the IP precedence range that the Router takes to
differentiate the traffic.
•
Type of Service:
Select the type of service that the Router takes to deal with the traffic.
•
802.1p:
Select the priority range for the rule.
When you select DSCP, you can assign the priority via DHCP (the header of IP group). It maps the
IP group into corresponding service class.
•
DSCP Range:
Enter the DSCP range to differentiate the traffic.
•
802.1p:
Select the priority range for the rule.
¾
Action:
Configure the action that the Router takes to deal with the traffic which accord with
the rule.
•
IPP/DS Field:
Select the type for the action.
•
IP Precedence Remarking:
Select the number to remark the priority for IP precedence.
•
Type of Service Remarking:
Select the type to remark the service.
•
DSCP Remarking:
Enter the number to remark the DSCP priority.
•
802.1p Remarking:
Select the type to remark the 802.1p priority.
•
Queue:
Select the priority type for the action.
Page 59 / 94
TD-W8951NB
150Mbps Wireless N ADSL2+ Modem Router (Annex B) User Guide
51
4.4.5 VLAN
Choose “
Advanced Setup
→
VLAN
”, you can activate the VLAN function in the next screen.
Virtual LAN (VLAN) is a group of devices on one or more LANs that are configured so that they
can communicate as if they were attached to the same LAN, when in fact they are located on a
number of different LAN segments. Because VLANs are based on logical instead of physical
connections, it is very flexible for user/host management, bandwidth allocation and resource
optimization. There are two types of VLAN as follows:
Port-Based VLAN: Each physical switch port is configured with an access list specifying
membership in a set of VLANs.
ATM VLAN: Using LAN Emulation (LANE) protocol to map Ethernet packets into ATM cells and
deliver them to their destination by converting an Ethernet MAC address into an ATM address.
Figure 4-33
1)
Assign VLAN PVID for each Interface
Click
Assign VLAN PVID for each Interface
in Figure 4-33, you can assign the PVID for each
interface in the next screen (shown in Figure 4-34).
Page 60 / 94
TD-W8951NB
150Mbps Wireless N ADSL2+ Modem Router (Annex B) User Guide
52
Figure 4-34
¾
PVID:
Each physical port has a default VID called PVID (Port VID). PVID is assigned to
untagged frames or priority tagged frames (frames with null (0) VID) received on this port.
2)
Define VLAN Group
Click
Define VLAN Group
in Figure 4-33, you can define VLAN groups in the next screen (shown
in Figure 4-35).

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