RangeMax™ Dual Band Wireless-N Gigabit Router WNDR3700 User Manual

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 wireless 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.

Figure 5-3

The WAN Setup fields are described in the following table:

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

If you want the wireless router to respond to a ping from the Internet, select

Port

this check box. This should be used only as a diagnostic tool, since it allows

 

your wireless 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 MTU (Maximum Transmit Unit) value for most Ethernet networks

 

is 1500 bytes, or 1492 Bytes for PPPoE connections. For some ISPs you

 

 

might need to reduce the MTU. This is rarely required, and should not be done

 

unless you are sure it is necessary for your ISP connection. See “Changing

 

the MTU Size” on page 6-6.

 

 

 

 

 

 

 

Customizing Your Network Settings

5-7

v1.3, October 2009

Page 79
Image 79
NETGEAR WNDR3700-100NAS user manual Configuring the WAN Setup Options, WAN Setup Settings, Setting Description