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31
Using the Configuration Menu
Advanced > Firewall
Firewall Rules is an advance feature used to deny or allow traffic from passing 
through the device. It works in the same way as IP Filters with additional settings. You 
can create more detailed rules for the device. 
Enabled or Disabled
Click 
Enabled 
to apply the filter policy or click 
Disabled
to enter an inactive filter policy 
(You can reactivate the policy later).
Name
Enter the name of the Firewall Rule.
Action
Select Allow or Deny to allow or deny traffic to pass through the DI-614+.
Interface Source 
Choose between a LAN or WAN source. An asterisk signifies the selection of both 
sources.
IP Start
The starting IP address for the filter policy. Leaving the field blank selects all IPs.
IP End
The ending IP address for the filter policy. Leaving the field blank sleects all IPs.
Interface Destination
Choose between a LAN or WAN destination. An asterisk signifies the selection of both 
destinations.
 
                 
                                
                    
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32
Advanced > Firewall (Continued)
Schedule
Select 
Always
, or choose 
From 
and enter the time period during which the virtual service 
will be available
Port Range
Enter in the port range of the TCP/UDP ports that you want the policy to apply to. 
If it 
is only a single port 
that you want the policy applied to, then enter the port number in 
the Start Port 
field and leave the End Port field blank. 
If you want to use all the ports, 
you can leave the port range empty.
Protocol
Select one of the following protocols: TCP, UDP, or ICMP.
Using the Configuration Menu
 
                 
                                
                    
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33
Using the Configuration Menu
Advanced 
> DMZ
If you have a computer that cannot run Internet applications properly from behind the 
DI-614+, then you can allow that computer to have unrestricted Internet access. Enter 
the IP address of that computer as a DMZ (Demilitarized Zone) host with unrestricted 
Internet access. Adding a client to the DMZ may expose that computer to a variety of 
security risks, so only use this option as a last resort.
 
                 
                                
                    
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34
Using the Configuration Menu
Advanced > Performance 
Beacon Interval
Beacons are packets sent by an Access Point to synchronize a 
wireless network. Specify a value.
100
is the default setting and is 
recommended.
TX Rates 
Select the data rate. Default is 
1-2-5.5-11-22Mbps
. 
DTIM interval
(
D
elivery 
T
raffic 
I
ndication 
M
essage) 
3 
is the default setting. A DTIM 
is a countdown informing clients of the next window for listening to 
broadcast and multicast messages.
Basic Rates 
Preamble Type
Select the data rate. Default is 
1-2-5.5-11-22Mbps
. 
Long preamble 
is the default setting. (High traffic networks should 
use the shorter preamble type.) The preamble defines the length of 
the CRC block used in communication between the Access Point 
and the roaming wireless Network adapters.(Cyclic Redundancy 
Check is a common technique for detecting data transmission 
errors)
 
                 
                                
                    
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35
Using the Configuration Menu
Advanced > Performance (Continued) 
SSID Broadcast
Enabled 
is the default setting. Choose 
Enabled 
to broadcast 
the SSID across the network. All devices on a network must 
share the same SSID (Service Set Identifier) to establish 
communication. Choose 
Disabled 
if you do not wish to 
broadcast the SSID over the network.
Antenna transmit 
power 
4X Mode 
The DI-614+ has the option to adjust its wireless transmit power. 
Limiting transmit power can help in situations where you do not 
want the same signals overlapping one another.
4x Mode
allows for higher speed wireless performance. Only 
other devices that support 
4x Mode
will be able to take ad-
vantage of the higher performance. 
Antenna Selection
Select Internal Antenna, External Antenna, or Diversity Antenna.
Diversity
External
Internal
In this mode, the DI-614+ only uses the internal antenna for 
short distance coverage.
In this mode, the DI-614+ only uses the external antenna and 
extends wireless coverage. 
In this mode, the DI-614+ uses both the internal and external 
antenna and then uses the antenna that picks up the strongest 
signal.