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A-LINK WNAP4G
User Manual
66
to connect with this device, it means the client can't access to the Internet either.
Choose "allow" or "deny" to allow or deny the clients, whose MAC addresses are
not in the "Control table" (please see below), to connect with this device.
3.
Association control:
Check "Association control" to enable the controlling of
which wireless client can associate to the wireless LAN. If a client is denied to
associate to the wireless LAN, it means the client can't send or receive any data
via this device. Choose "allow" or "deny" to allow or deny the clients, whose MAC
addresses are not in the "Control table", to associate to the wireless LAN.
Afterwards,
click on “Save” to store your settings or click “Undo” to give up the
changes.
4.1.6 Others
1.
MAC Address for Wake-on-LAN:
Input MAC address of host that you want
to use WOL.
2.
Discard PING from WAN side:
When this feature is enabled, any host on
the WAN cannot ping this product.
3.
DoS Attack Detection:
When this feature is enabled, the router will detect
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A-LINK WNAP4G
User Manual
67
and log the DoS attack coming from the Internet. Currently, the router can detect
the following DoS attack: SYN Attack, WinNuke, Port Scan, Ping of Death, Land
Attack etc.
4.
SPI mode:
You can enable this function and the router will check every
incoming packet to verify if this packet is valid or not, and drop those invalid
packets.
5.
Disable PPTP passthrough:
The PPTP passthrough is enabled by default.
You can disable here.
6.
Disable L2TP passthrough:
The L2TP passthrough is enabled by default.
You can disable here.
7.
Disable IPSec passthrough:
The IPSec passthrough is enabled by default.
You can disable here.
8.
Stealth Mode:
If enable this option, router will become
“
hidden
”
if someone
uses port scan utility to scan available ports on this router.
Afterwards, click on “Save” to store your settings or click “Undo” to give up
the changes.
4.2 QoS (Quality of Service)
Quality of Service (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 on priority. This is useful when there are certain types of
data you want to give higher priority to, such as voice data packets given higher priority
than Web data packets.
This router provides two types of Cross-layer QoS (support throughout Application/
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A-LINK WNAP4G
User Manual
68
Transport/ Data link/Network Layers in the network) tools. They are “Smart QoS” and
“User Defined Rule
-
based QoS” to help you easily configure the QoS that you need.
Please find more details in the later section.
The main goal of QoS is prioritizing incoming data, preventing data loss due to factors
such as jitter, delay and dropping. Another important aspect of QoS is ensuring that
prioritizing one data flow doesn’t interfere with other data flows.
QoS can be toggled
Activated and Deactivated. QoS must be activated before you can edit the following
options. When you are done making changes, click on
Save
to save your changes.
4.2.1 Smart QoS
1.
QoS :
you can select enable/disable the QoS control
2.
QoS Mode :
select “Smart
-
QoS” for your own Q
oS control
3.
Bandwidth of Upstream / Bandwidth of Downstream
: you can input the
value of maximize of upstream and downstream bandwidth from your ISP
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A-LINK WNAP4G
User Manual
69
4.
Flexible Bandwidth Management (FBM):
A.
When this management is enabled, system will share the bandwidth of those
selected applications to other applications if user do not run those selected
application, for example, If you select Game/ VoIP/ Video 3 applications for
higher priority in your system, then the system will automatically reserve 10% of
bandwidth to other application, and share the rest of bandwidth
(100-
10)/3=30% each to Game/VoIP/Video, so if user do not play a game, then the
system will flexible share the 30% of bandwidth to other application.
Example for Smart-QoS with FBM enable :
Mr. Wang selects Game/ VoIP/
Video 3 applications for higher priority in his system, the system will automatically
reserve 10% of minimum rate of bandwidth to other application, and share the
rest minimum rate of bandwidth
(100-10)/3=30% each to Game/VoIP/Video. If
M
r. Wang’s son plays on
-line game in the morning, the total bandwidth will all
reserve to his son. By the evening, when Mr. Wang back home and wants to
watch IPTV, then he will get the same priority with his son, and share the
bandwidth.
B.
When this management is disabled, system will allow you to input percentage
of bandwidth manually.
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A-LINK WNAP4G
User Manual
70
4.2.2
User Defined Rule-based QoS
1.
QoS:
You can enable/disable this QoS control.
2.
QoS Mode:
You can select User defined QoS rule for your own QoS control
3.
Bandwidth of Upstream / Bandwidth of Downstream:
You can input the
value of maximize of upstream and downstream bandwidth from your ISP
4.
Create a QoS Rule:
Y
ou can press the button of ‘Add New Rule’
shown in
the icon above to create a new QoS rule. you can enable the rule, and select
QoS class type as below.
Please do
“Class”
selection before you do
“Function”
selection. Each
“Class”
has its own subordinated
“Function”
options.
5.
Add a Conjunction (AND) Rule:
You can add a conjunction rule by clicking
the “Add a Conjunction (AND)
Rule…” button and you will be able to see two

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