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Chapter±4
Advanced Configuration
²´
W±reless-N ADSL2+ Gateway
Applications and Gaming > Single Port
Forwarding
The
 Single Port Forwarding
screen allows you to customize
port services for common applications.
Applications and Gaming > Single Port Forwarding
When users send these types of requests to your network
via the Internet, the Gateway will forward those requests
to the appropriate servers (computers). Before using
forwarding, you should assign static IP addresses to the
designated servers.
Single Port Forwarding
To forward a port, enter the information on each line for
the criteria required.
Appl±cat±on
Enter the name you wish to give the
application. Each name can be up to 12 characters.
External and Internal Port
Enter the external and
internal port numbers.
Protocol
Select the protocol used for this application,
either
TCP
or
UDP
.
IP Address
For each application, enter the IP address of
the computer that should receive the requests.
Enable
For each application, select
Enable
to enable
port forwarding.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.
Applications and Gaming > Port Range
Forwarding
The
  Port  Range  Forwarding
screen allows you to set up
public services on your network, such as web servers,
ftp servers, e-mail servers, or other specialized Internet
applications. (Specialized Internet applications are any
applications that use Internet access to perform functions
such as videoconferencing or online gaming. Some Internet
applications may not require any forwarding.)
Applications and Gaming > Port Range Forwarding
When users send these types of requests to your network via
the Internet, the Gateway will forward those requests to the
appropriate servers (computers). Before using forwarding,
you should assign static IP addresses to the designated
servers.
If you need to forward all ports to one computer, click the
DMZ
tab.
Port Range Forwarding
To forward a port range, enter the information on each
line for the criteria required.
Appl±cat±on
In this field, enter the name you wish to give
the application. Each name can be up to 12 characters.
Port Range Start and End
Enter the number or range of
port(s) used by the server or Internet applications. Check
with the Internet application documentation for more
information.
Protocol
Select the protocol used for this application,
either
TCP
or
UDP
, or
Both
.
IP Address
For each application, enter the IP address of
the computer running the specific application.
Enable
Select
Enable
to enable port forwarding for the
applications you have defined.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.
Page 22 / 41
Chapter±4
Advanced Configuration
²8
W±reless-N ADSL2+ Gateway
Applications & Gaming > Port Range
Triggering
The
Port  Range  Triggering
screen allows the Gateway to
watch outgoing data for specific port numbers. The IP
address of the computer that sends the matching data is
remembered by the Gateway, so that when the requested
data returns through the Gateway, the data is pulled back
to the proper computer by way of IP address and port
mapping rules.
Applications and Gaming > Port Range Triggering
Port Range Triggering
To trigger a port range, enter the information on each line
for the criteria required.
Appl±cat±on Name
Enter the application name of the
trigger.
Tr±ggered Range Start Port and End Port
For each
application, enter the starting and ending port numbers of
the triggered port number range. Check with the Internet
application
documentation
for
the
port
number(s)
needed.
Forwarded Range Start Port and End Port
For each
application, enter the starting and ending port numbers
of the forwarded port number range. Check with the
Internet application documentation for the port number(s)
needed.
Enable
Select
Enable
to enable port triggering for the
applications you have defined.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.
Applications and Gaming > DMZ
The DMZ feature allows one network computer to be
exposed to the Internet for use of a special-purpose
service such as Internet gaming or videoconferencing.
DMZ hosting forwards all the ports at the same time to
one PC. The Port Range Forwarding feature is more secure
because it only opens the ports you want to have opened,
while DMZ hosting opens all the ports of one computer,
exposing the computer to the Internet.
Applications and Gaming > DMZ
DMZ
Any computer whose port is being forwarded must have
its DHCP client function disabled and should have a new
static IP address assigned to it because its IP address may
change when using the DHCP function.
DMZ Host±ng
To disable DMZ hosting, keep the default,
D±sable
. To expose one PC, select
Enable
. Then configure
the following setting:
DMZ Host IP Address
Enter the IP address of the
computer.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.
Applications and Gaming > QoS
Quality of Service (QoS) ensures better service to high-
priority network traffic, which may involve demanding,
real-time applications, such as videoconferencing.
Applications and Gaming > QoS
Page 23 / 41
Chapter±4
Advanced Configuration
²9
W±reless-N ADSL2+ Gateway
Wireless Network
The Gateway features Wi-Fi Multimedia (WMM™) Support.
The No Acknowledgement feature is available only when
the WMM Support feature is enabled.
WMM Support
Wi-Fi Multimedia is a QoS feature defined
by WiFi Alliance before IEEE 802.11e was finalized. Now it
is part of IEEE 802.11e. When it is enabled, it provides four
priority queues for different types of traffic. It automatically
maps the incoming packets to the appropriate queues
based on QoS settings (in IP or layer 2 header). WMM
provides the capability to prioritize traffic in your
environment. If you have other devices on your network
that support WMM, keep the default,
Enable
. Otherwise,
select
D±sable
.
No
ACK
If
you
want
to
disable
the
Gateway’s
Acknowledgement feature, so the Gateway will not re-
send data if an error occurs, then keep the default,
Enable
.
Otherwise, select
D±sable
.
Internet Access Priority
Enable/D±sable
To use the QoS policies you have set,
select
Enable
. Otherwise, select
D±sable
.
Set Internet Bandw±dth
This is used to set your Internet
connection’s bandwidth. Select
Auto
(default) to set the
bandwidth automatically. To set the bandwidth manually,
select
Manual
, then enter the bandwidth in kbps.
Category
Select one of these categories:
Appl±cat±ons
,
Onl±ne
Games
,
MAC Address
,
Ethernet Port
, or
Vo±ce Dev±ce
.
Then proceed to the instructions below for your selection.
For each category, you can set the bandwidth priority to
one of four levels:
H±gh
,
Med±um
,
Normal
, or
Low
. Be
careful not to set all your applications to High priority,
as this will defeat the purpose of allocating the available
bandwidth. For below-normal bandwidth, select
Low
.
Depending on the application, a few attempts may be
needed to set the appropriate bandwidth priority.
Applications
Appl±cat±ons
Select the appropriate application:
MSN
Messenger
,
Skype
, or
Yahoo Messenger
. For any other
application, select
Add a New Appl±cat±on
, then fill in the
Enter a Name
and
Port Range
fields as detailed below in
“Add
a New Application or Game”.
Pr±or±ty
Select the appropriate priority:
H±gh
,
Med±um
,
Normal
, or
Low
.
Applications - MSN Messenger
Click the
Add
button to save your changes. Your new entry
will appear in the Summary list.
Add a New Application or Game
Add a New Application
Add a New Game
Enter a Name
Enter any name to indicate the name of
the entry.
Port Range
Enter the port range used by the application
or game. For example, to allocate bandwidth for FTP, enter
21-21. If you need services for an application or game that
uses ports 1000 to 1250, enter 1000-1250. You can have up
to three ranges per bandwidth allocation. Port numbers
range from 1 to 65535. Check the application’s or game’s
documentation for details on service ports used.
In the drop-down menu, select the protocol
TCP
or
UDP
,
or select
Both
.
Pr±or±ty
Select the appropriate priority:
H±gh
,
Med±um
,
Normal
, or
Low
. The default is
Med±um
.
Click the
Add
button to save your changes. Your new entry
will appear in the Summary list.
Online Games
Online Game
Select a Game
Select the game from the drop-down
menu. If the game is not listed, select
Add a New Game
,
then fill in the
Enter  a  Name
and
Port  Range
fields as
detailed above in “Add
a New Application or Game”.
Pr±or±ty
Select the appropriate priority:
H±gh
,
Med±um
,
Normal
, or
Low
. The default is
Med±um
.
Click the
Add
button to save your changes. Your new entry
will appear in the Summary list.
Page 24 / 41
Chapter±4
Advanced Configuration
20
W±reless-N ADSL2+ Gateway
MAC Address
MAC Address
Enter a Name
Enter a name for your device.
MAC Address
Enter the MAC address of your device.
Pr±or±ty
Select the appropriate priority:
H±gh
,
Med±um
,
Normal
, or
Low
. The default is
Med±um
.
Click the
Add
button to save your changes. Your new entry
will appear in the Summary list.
Ethernet Port
Ethernet Port
Ethernet
Select the appropriate Ethernet port.
Pr±or±ty
Select the appropriate priority:
H±gh
,
Med±um
,
Normal
, or
Low
. The default is
Med±um
.
Click the
Add
button to save your changes. Your new entry
will appear in the Summary list.
Voice Device
Voice Device
Enter a Name
Enter a name for your voice device.
MAC Address
Enter the MAC address of your voice device.
Pr±or±ty
Select the appropriate priority:
H±gh
,
Med±um
,
Normal
, or
Low
. The default is
Med±um
.
Click the
Add
button to save your changes. Your new entry
will appear in the Summary list.
Summary
This lists the QoS entries you have created for your
applications and devices.
Pr±or±ty
This displays the bandwidth priority of
H±gh
,
Med±um
,
Normal
, or
Low
.
Name
This displays the application, device, or port
name.
Informat±on
This displays the port range or MAC address
entered for your entry. If a pre-configured application or
game was selected, there will be no valid entry shown in
this section.
Remove
Click this button to remove an entry.
Ed±t
Click this button to make changes.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.
Administration > Management
This screen allows the network’s administrator to manage
specific Gateway functions for access and security.
Administration > Management
Gateway Access
Local Access
To ensure the Gateway’s security, you will be asked for your
User Name and password when you access the Gateway’s
web-based utility. The default User Name and password
are
adm±n
.
User L±st
Select the number of the user. The default is
user
²
.
Gateway User Name
Enter the default Gateway User
Name,
adm±n
.
Gateway
Password
Linksys
recommends
that
you
change the default Gateway Password,
adm±n
, to one of
your choice.
Re-Enter to Conf±rm
Enter the Gateway Password again
to confirm.
For non-admin users, select a different user number, and
then configure the Gateway User Name and Password
settings.
Page 25 / 41
Chapter±4
Advanced Configuration
W±reless-N ADSL2+ Gateway
Remote Access
Remote Management
To permit remote access to the
Gateway from outside the local network, select
Enable
.
Otherwise, keep the default,
D±sable
.
Management Port
Enter the port number that will be
open to outside access.
NOTE:
To manage the Gateway remotely, enter
https://<I nternet_IP_address>:p or t
substituting
the
Gateway’s
Internet
IP
address for
<Internet_IP_address>
, and the
Management Port number for
port
.
UPnP
Universal Plug and Play (UPnP) allows Windows XP
and Vista to automatically configure the Gateway for
various Internet applications, such as gaming and
videoconferencing.
UPnP
If you want to use UPnP, keep the default,
Enable
.
Otherwise, select
D±sable
.
WLAN
If you are using the Gateway in a public domain where you
are giving wireless access to your guests, you can disable
wireless access to the Gateway’s web-based utility.
Management v±a WLAN
This feature allows the Gateway
to be managed by a wireless computer on the local
network when it logs into the Gateway’s web-based
utility. You will only be able to access the utility via a wired
connection if you disable this feature. To allow wireless
access to the utility, keep the default,
Enable
. Otherwise,
select
D±sable
.
IGMP
IGMP Proxy
Internet Group Membership Protocol (IGMP)
is a system to improve multicasting for wireless clients.
This should be set to
Enable
if your clients support it;
otherwise, select
D±sable
.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.
Administration > Reporting
The Gateway can keep logs of traffic and events for your
Internet connection.
Administration > Reporting
Reporting
Log
To disable the Log function, keep the default,
D±sable
.
To monitor traffic between the network and the Internet,
select
Enable
. With logging enabled, you can choose to
view temporary logs.
E-Ma±l Alerts
To enable E-Mail Alerts, select
Enable
.
Den±al of Serv±ce Thresholds
Enter the number of Denial
of Service attacks that will trigger an e-mail alert.
SMTP Ma±l Server
Enter the IP address of the SMTP
server.
E-Ma±l Address for Alert Logs
Enter the e-mail address
that will receive alert logs.
Return E-Ma±l address
Enter the return address for the
e-mail alerts. (This can be a dummy address.)
V±ew Log
To view the logs, click
V±ew Log
.
View Log
Log
Type
Select from the following:
ALL
,
System Log
,
Access Log
,
F±rewall Log, or VPN Log
.
Click
Refresh
to update the log. Click
Clear
to clear all
the information that is displayed. Click
Prev±ous Page
to view the previous page of information. Click
Next
Page
to view the next page of information.
Click
Save Sett±ngs
to apply your changes, or click
Cancel
Changes
to cancel your changes.

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