Netgear WNDR3300 사용자 설명서
NETGEAR RangeMax™ Dual Band Wireless-N Router WNDR3300 Reference Manual
Safeguarding Your Network
2-21
v1.0, February 2008
Understanding Your Firewall
Your RangeMax Dual Band Wireless-N Router WNDR3300 contains a true firewall to protect
your network from attacks and intrusions. A firewall is a device that protects one network from
another while allowing communication between the two. Using a process called Stateful Packet
Inspection, the firewall analyzes all inbound and outbound traffic to determine whether or not it
will be allowed to pass through.
your network from attacks and intrusions. A firewall is a device that protects one network from
another while allowing communication between the two. Using a process called Stateful Packet
Inspection, the firewall analyzes all inbound and outbound traffic to determine whether or not it
will be allowed to pass through.
By default, the firewall allows any outbound traffic and prohibits any inbound traffic except for
responses to your outbound traffic. However, you can modify the firewall’s rules to achieve the
following behavior:
responses to your outbound traffic. However, you can modify the firewall’s rules to achieve the
following behavior:
•
Blocking sites. Block access from your network to certain Web locations based on Web
addresses and Web address keywords. This feature is described in
addresses and Web address keywords. This feature is described in
.
•
Blocking services. Block the use of certain Internet services by specific computers on your
network. This feature is described in
network. This feature is described in
•
Scheduled blocking. Block sites and services according to a daily schedule. This feature is
described in
described in
•
Allow inbound access to your server. To allow inbound access to resources on your local
network (for example, a Web server or remote desktop program), you can open the needed
services by configuring port forwarding as described in
network (for example, a Web server or remote desktop program), you can open the needed
services by configuring port forwarding as described in
.
•
Allow certain games and applications to function correctly. Some games and applications
need to allow additional inbound traffic to function. Port triggering can dynamically allow
additional service connections, as described in
need to allow additional inbound traffic to function. Port triggering can dynamically allow
additional service connections, as described in
. Another feature to solve application conflicts with the firewall is
Universal Plug and Play (UPnP), described in