D-Link DSL-2730U Router Manual PDF (Setup & Configuration Guide)

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Click

Add

to add a bridge filter. The page shown in the following figure appears.

Click

Apply

to save the settings.

4.4.7

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 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

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.

DNS SERVER CONFIGURATION

If you are using the device for DHCP service on the LAN or if you are using DNS

servers on the ISP network, select

Obtain DNS Info from a WAN interface

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.

DSL-2730U User Manual

Page 57 / 87

4.4.8

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

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.



DDNS provider

: Select one of the DDNS registration organizations from

the down-list drop.



Host Name

: Enter the host name that you registered with your DDNS

service provider.



Interface

: Select the interface you want to use.



Username

: Enter the user name for your DDNS account.



Password

: Enter the password for your DDNS account.

Click

Apply

to save the settings.

DSL-2730U User Manual

Page 58 / 87

4.4.9

Multicast

Choose

ADVANCED

Multicast

. The page shown in the following figure

appears.



Default Version

:IGMP version



Query Interval(s)

:The query interval is the amount of time in seconds

between IGMP General Query messages sent by the router (if the router

is the querier on this subnet)



Query Response Interval (1/10s)

: The query response interval is the

maximum amount of time in seconds that the IGMP router waits to

receive a response to a General Query message. The query response

interval is the Maximum Response Time field in the IGMP v2 Host

Membership Query message header. The default query response

interval is 10 seconds and must be less than the query interval



Last Member Query Interval (1/10s)

: The last member query interval is

the amount of time in seconds that the IGMP router waits to receive a

response to a Group-Specific Query message. The last member query

interval is also the amount of time in seconds between successive

Group-Specific Query messages.



Robustness Value

The robustness variable is a way of indicating how

susceptible the subnet is to lost packets. IGMP can recover from

robustness variable minus 1 lost IGMP packets.



Maximum Multicast Groups

max multicast groups



Maximum Multicast Data Sources (for IGMPv3)

max group data

sources that want to receive.



Maximum Multicast Group Members

:Max member in one group



Fast Leave Enable

Enable or disable fast leave feature.



LAN to LAN (Intra LAN) Multicast Enable

: E

nable or disable Lan to

Lan msulticast.

DSL-2730U User Manual

Page 59 / 87

4.4.10

Network Tools

Choose

ADVANCED

Network Tools

. The page shown in the

following figure appears.

DSL-2730U User Manual

Page 60 / 87

In the

NETWORK TOOLS

page, you can configure port mapping,

IGMP, quality of service, queue, QoS classification, UPnP, ADSL

settings, SNMP, TR-069, and certificates through clicking the

navigation.

DSL-2730U User Manual

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