Page 36 / 73
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3´
D-Link DNS-3±1 User Manual
Section 3 - Configuration
After enabling the iTunes server on the DNS-321, launch iTunes. In your iTunes utility, select the DNS-321 and enter 
the iTunes server password if required.
Select the DNS-321. When prompted, 
enter in the iTunes server password. 
Click 
OK
.
Media stored on the DNS-321 
will then be available for use in 
iTunes.
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                        Page 37 / 73
                                            
                    
3µ
D-Link DNS-3±1 User Manual
Section 3 - Configuration
DHCP Server
DHCP Server
Starting IP 
Address
Lease Time
DHCP Client 
List
The DNS-321 can be used as a DHCP Server. As a DHCP server, it can be used to serve IP addresses to devices on 
your local network. However, this feature should not be enabled if you already have a DHCP server, such as a router 
on your local network.
Enable or Disable the DNS-321 
DHCP Server.
Enter the starting IP address for the 
range of addresses assigned by the 
DHCP server.
Ending IP 
Address
Enter the ending IP address for the 
range of addresses assigned by the 
DHCP server.
Set the duration of time that an IP 
address will remain assigned to a 
device.
Displays the Hostname, IP address, 
MAC address, and Expired Time of 
the clients that have received a 
DHCP address.
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                        Page 38 / 73
                                            
                    
3¶
D-Link DNS-3±1 User Manual
Section 3 - Configuration
LLTD
LLTD
The DNS-321 supports LLTD (Link Layer Topology Discovery) and is used by the Network Map application that is 
included in Windows Vista
™
.
Select to enable or disable LLTD on 
your DNS-321.
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                        Page 39 / 73
                                            
                    
3·
D-Link DNS-3±1 User Manual
Section 3 - Configuration
Admin
User Name
Password
New Password
Confirm 
Password
Save Settings
Tools
The Admin menu allows you to set a password for the admin account. 
It is recommended to set an admin account 
password when first configuring the DNS-321.
The administrator user name is 
admin, 
and this cannot be changed.
Enter the current password. (Leave 
this blank if you have not set a 
password yet.)
Enter a new password.
Enter the new password again for 
confirmation.
Click 
Save Settings
to save the new 
password.
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                        Page 40 / 73
                                            
                    
²0
D-Link DNS-3±1 User Manual
Section 3 - Configuration
Time
NTP Server
From My 
Computer
Set Time 
Manually
The DNS-321 Time page contains several different options for setting the device’s internal clock. It is important that 
accurate time is set so that scheduled backups and downloads will be accurate.
Select your time zone from the 
drop-down menu.
Click 
Set Time
after selecting your 
time zone.
Network Time Protocol (NTP) 
synchronizes the DNS-321 with an 
Internet time server.
D-Link provides two time servers 
for your convenience. Choose the 
one closest to your location.
Click 
Set Time
after selecting the 
location.
This option will synchronize 
the DNS-321 clock with your 
computer.
Click
Set Time
to sync with the local 
computer.
This option allows you to set the 
time and date manually.
Enter the appropriate time and date 
and click
Set Time.
Time Zone
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