Wan setup – On Networks N150RM User Manual User Manual
Page 29
Modem Router Setup
29
N150 Wireless ADSL2+ Modem Router N150RM
6.
Select the Turn Access Control On check box.
7.
Click Apply.
WAN Setup
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.
Select Setup > WAN Setup.
The following information is displayed:
•
Connect Automatically, as Required
. The modem router connects to the Internet
automatically.
•
Enable PPPoE Relay
. When enabled, this feature allows a PPPoE client on a local
computer to connect to a remote PPPoE server with the modem router acting as a relay
agent.
•
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 are playing online
games or videoconferencing. Be careful when using this feature because it makes the
firewall security less effective. See the following section,
, for more
details.
•
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. Use this setting only as a diagnostic tool
because it allows your 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 is rarely required, and should not be done unless you are
sure that it is necessary for your ISP connection. See