User's Manual

NETGEAR genie ADVANCED Home

D6200 WiFi Modem Router

WAN Setup

The WAN Setup screen lets you configure a DMZ (demilitarized zone) server, change the

maximum transmit unit (MTU) size, and enable the WiFi modem router to respond to a ping

on the WAN (Internet) port. Select ADVANCED > Setup > WAN Setup to view the following

screen:

• WAN Preference. Select your WAN preference: Auto Detect, Must use DSL WAN, or

Must use Ethernet WAN.

• Disable Po

rt Scan and DoS Protection. DoS protection protects your LAN against

denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, Teardrop Attack,

UDP Flood, ARP Attack, Spoofing ICMP, Null Scan, and many others. This feature should

be disabled only in special circumstances.

• Default DMZ Server. This feature is somet

imes helpful when you are playing online

games or videoconferencing. Be careful when using this feature because it makes the

firewall security less effective. See the following section, Default DMZ Server, for more

details.

• Respond to Ping on I

nternet Port. If you want the WiFi modem router to respond to a

ping from the Internet, select this check box. Use this setting only as a diagnostic tool

because it allows your WiFi modem router to be discovered. Do not select this check box

unless you have a specific reason.

• 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 change is rarely required, and should not be done unless

you are sure that it is necessary for your ISP connection. See Change the MTU Size on

page 51.