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After modifying a queue, click
Submit
to enable the modification. Click
Refresh
to refresh the queue.
3.3.8.3
QoS Classification
In the
QoS Configuration
page, click
QoS Classification
. The page shown in
the following figure appears.You can configure QoS queue rule.
Click
Add Classification Rule
. The page shown in the following figure appears.
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The following table describes the parameters of this page.
Field
Description
Enable
Tick in the box to enable this QoS rule.
Ip Protocol Type
Select the protocol type as
IPv4
or
IPv6
.
Input Interface
Based on the Classify Type, choose a WAN/LAN
interface.
802.1P
Choose a matched 802.1P VLAN priority.
DSCP Check
Choose a matched DSCP type.
Protocol Type
Choose a protocol type matching with the QoS rule.
Classify Queue
Choose a QoS queue for the rule.
DSCP Mark
Set a DSCP Mark for this QoS rule.
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Field
Description
COS Mark
Set a COS Mark for this QoS rule.
You may click
Edit
to modify the existing classification rule.
3.3.9
Firewall Settings
A denial-of-service (DoS) attack is characterized by an explicit attempt by
attackers to prevent legitimate users of a service from using that service.
Port scan protection is designed to block attempts to discover vulnerable ports or
services that might be exploited in an attack from the WAN.
Choose
ADVANCED
>
Firewall Settings
. The page shown in the following
figure appears.
Click
Apply
to save the settings.
3.3.10 DNS
Domain name system (DNS) is an Internet service that translates domain names
into IP addresses. Because domain names are alphabetic, they are easier to
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remember. The Internet, however, is actually based on IP addresses. Each time
you use a domain name, a DNS service must translate the name into the
corresponding IP address. For example, the domain name www.example.com
might be translated to 198.105.232.4.
The DNS system is, in fact, its own network. If one DNS server does not know
how to translate a particular domain name, it asks another one, and so on, until
the correct IP address is returned.
Choose
ADVANCED
>
DNS
. The page shown in the folllowin g figure appears.
If you are using the device for DHCP service on the LAN or using DNS servers on
the ISP network, select
Obtain DNS server address automatically
.
If you have DNS IP addresses provided by your ISP, enter these IP addresses in
the available entry fields for the preferred DNS server and the alternate DNS
server.
Click
Apply
to save the settings.
3.3.11 Dynamic DNS
The device supports dynamic domain name service (DDNS). The dynamic DNS
service allows a dynamic public IP address to be associated with a static host
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name in any of the many domains, and allows access to a specified host from
various locations on the Internet. Click a hyperlinked URL in the form of
hostname.dyndns.org and allow remote access to a host. Many ISPs assign
public IP addresses using DHCP, so locating a specific host on the LAN using the
standard DNS is difficult. For example, if you are running a public web server or
VPN server on your LAN, DDNS ensures that the host can be located from the
Internet even if the public IP address changes. DDNS requires that an account
be set up with one of the supported DDNS service providers (DyndDNS.org or
dlinkddns.com).
Choose
ADVANCED
>
Dynamic DNS
. The page shown in the following page
appears.
Click
Add
to add dynamic DNS. The page shown in the following figure appears.
19216811.live