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Page 71 / 167 Scroll up to view Page 66 - 70
Chapter 6.
USB Storage
|
71
N300 Wireless ADSL2+ Modem Router DGN2200
Note:
In Windows 2000 and Windows XP, File and Printer Sharing is
enabled by default.
Configuring Windows 98SE and Windows ME
The easiest way to get to your network properties is to go to your desktop, right-click
Network Neighborhood
and then select
Properties
. File and Printer Sharing for Microsoft
Windows should be listed. If not, click
Add
and follow the installation prompts.
Note:
If you have any questions about File and Printer Sharing, contact
Microsoft for assistance.
Configuring Windows 2000 and Windows XP
Right-click the network connection for your local area network. File and Printer Sharing for
Microsoft Windows should be listed. If not, click
Install
and follow the installation prompts.
Page 72 / 167
Chapter 7.
Advanced Settings
|
72
7
7.
Advanced Settings
Configuring for unique situations
This chapter describes the advanced features of your modem router. The information is for users
with a solid understanding of networking concepts who want to set the modem router up for
unique situations such as when remote access from the Internet by IP or domain name is
needed.
This chapter contains the following sections:
•
WAN Setup
•
Dynamic DNS
•
LAN Setup
•
Quality of Service (QoS)
•
Advanced Wireless Settings
•
Remote Management
•
Static Routes
•
Universal Plug and Play
•
Traffic Meter
•
Advanced USB Settings
•
Wireless Bridging and Repeating Networks
Page 73 / 167
Chapter 7.
Advanced Settings
|
73
N300 Wireless ADSL2+ Modem Router DGN2200
WAN Setup
Select
Advanced > WAN Setup
to display the following screen:
The following settings are available:
•
Disable Port Scan and DoS Protection
. The firewall protects your LAN against port
scans and denial of service (DoS) attacks. This protection should be disabled only in
special circumstances.
•
Default DMZ Server
. The default demilitarized zone (DMZ) server feature is helpful when
you use online games and video conferencing applications that are incompatible with
NAT. See
Default DMZ Server
on page
74.
•
Respond to Ping on Internet WAN Port
. If you want the modem router to respond to a
ping from the Internet, select this check box. This should be used only as a diagnostic
tool, because it allows your modem router to be discovered. Do not select this check box
unless you have a specific reason to do so.
•
MTU Size (in bytes)
. The normal Maximum Transmit Unit (MTU) value for most Ethernet
networks is 1500 bytes, or 1492 bytes for PPPoE connections. For some ISPs you might
need to reduce the MTU. But this is rarely required, and should not be done unless you
are sure it is necessary for your ISP connection.
•
NAT Filtering
. By default NAT filtering is used.
•
Disabling the SIP ALG
. The Session Initiation Protocol (SIP) Application Level Gateway
(ALG) is enabled by default to optimize VoIP phone calls that use the SIP. The Disable
SIP ALG check box allows you to disable the SIP ALG. Disabling the SIP ALG might be
useful when running certain applications.
Page 74 / 167
74
|
Chapter 7.
Advanced Settings
N300 Wireless ADSL2+ Modem Router DGN2200
Default DMZ Server
The default demilitarized zone (DMZ) server feature is helpful when you use online games
and video conferencing applications that are incompatible with NAT. The modem router is
programmed to recognize some of these applications and to work correctly with them, but
there are other applications that might not function well. In some cases, one local computer
can run the application correctly if that computer’s IP address is entered as the default DMZ
server.
Note:
For security reasons, you should avoid using the default DMZ server
feature. When a computer is designated as the default DMZ server,
it loses much of the protection of the firewall. If compromised via the
Internet, the computer can be used to attack your network.
Incoming traffic from the Internet is usually discarded by the modem router unless the traffic
is a response to one of your local computers or a service that you have configured in the
Ports screen. Instead of discarding this traffic, you can have it forwarded to one computer on
your network. This computer is called the default DMZ server.
To assign a computer or server to be a default DMZ server:
1.
In the WAN Setup screen, select the
Default DMZ Server
check box.
2.
Type the IP address for that server and click
Apply
.
Page 75 / 167
Chapter 7.
Advanced Settings
|
75
N300 Wireless ADSL2+ Modem Router DGN2200
Dynamic DNS
If your network has a permanently assigned IP address, you can register a domain name that
is linked to your IP address by public Domain Name Servers (DNS). More commonly, Internet
accounts have dynamically assigned IP addresses in which the IP addresses change
frequently. In this case, use a commercial Dynamic DNS service to register your domain to its
IP address and forward traffic directed at your domain to your current IP address.
The modem router has a client that can connect to a Dynamic DNS service provider. Once
you set up Dynamic DNS in the modem router, when your IP address changes, your modem
router contacts your Dynamic DNS service provider, logs in to your account, and registers
your new IP address.
To set up Dynamic DNS:
1.
Select
Advanced > Dynamic DNS
to display the following screen.
2.
Access the website of one of the Dynamic DNS service providers whose names appear in
the Service Provider drop-down list, and register for an account. For example, for
dyndns.org, go to www.dyndns.org.
3.
Select the
Use a Dynamic DNS Service
check box.
4.
Select the name of your Dynamic DNS service provider.
5.
Type the host name that your Dynamic DNS service provider gave you. This is sometimes
called the domain name. If your URL is myName.dyndns.org, your host name is myName.
6.
Type the user name for your Dynamic DNS account.
7.
Type the password (or key) for your Dynamic DNS account.
8.
If your Dynamic DNS provider allows the use of wildcards in resolving your URL, you can
select the
Use Wildcards
check box to activate this feature. For example, the wildcard
feature causes *.yourhost.dyndns.org to be aliased to the same IP address as
yourhost.dyndns.org.
9.
Click
Apply
to save your settings.

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