User's Manual

RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual
Customizing Your Network Settings 5-7
v1.0, December 2008
Configuring the WAN Setup Options
The WAN Setup screen lets you configure a DMZ (demilitarized zone) server, change the
Maximum Transmit Unit (MTU) size, and enable the modem router to respond to a ping on the
WAN (Internet) port. From the main menu, under Advanced, click WAN Setup to view the WAN
Setup screen.
The WAN Setup fields are described in the following table:
Figure 5-3
Table 5-2. WAN Setup Settings
Setting Description
Disable SPI Firewall The Stateful Packet Inspection (SPI) firewall protects your network and
computers against attacks and intrusions. A stateful packet firewall carefully
inspects incoming traffic packets, looking for known exploits such as
malformed, oversized, or out-of-sequence packets. The firewall should be
disabled only in special circumstances, such as when you are troubleshooting
application issues.
Default DMZ Server This feature is sometimes helpful when you are using some online games and
videoconferencing. Be careful when using this feature because it makes the
firewall security less effective. See the following section, Configuring Static
Routes.
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, since it allows your
modem router to be discovered. Do not select this check box unless you have
a specific reason to do so.