Netgear R6300 [35/127] Wan setup

genie Advanced Home

R6300 WiFi Router 802.11ac Dual Band Gigabit

WAN Setup

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

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

(Internet) port. Select Advanced > Setup > WAN Setup to view the following screen:

• Disable Port 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 should be

disabled only in special circumstances.

• Default DMZ Server.

This feature is sometimes helpful when you play online games or

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

security less ef

fective. See the following section, Default DMZ Server, for more details.

• Respond to Ping on Internet Port. If you want the 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 router to be discovered. Do not select this check box unless you have a specific

reason.

• Disable IGMP Proxying. IGMP proxying allows a computer on the local area network

(LAN) to receive the multicast traf

fic it is interested in from the Internet. If you do not need

this feature, you can select this check box to disable it.

• 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 Change the MTU Size on page 36.

• NAT Filtering. Network Address Translation (NAT) determines how the router processes

inbound traf

fic. Secured NAT provides a secured firewall to protect the computers on the

LAN from attacks from the Internet, but might prevent some Internet games,

point-to-point applications, or multimedia applications from functioning. Open NAT

provides a much less secured firewall, but allows almost all Internet applications to

function.