User manual

Section 3 - Configuration

D-Link DSL-321B User Manual

FIREWALL & DMZ

The router already provides a simple firewall by virtue of the way NAT works. By default NAT does not respond to unsolicited incoming requests on

any port, thereby making your WAN invisible to Internet cyber attackers.

DMZ means 'Demilitarized Zone'. DMZ allows computers behind the router firewall to be accessible to Internet traffic. Typically, your DMZ would

contain Web servers, FTP servers, and others.

FIREWALL SETTING

Enable the Firewall on the

Enable Firewall

DMZ SETTING

Please enable the

Enable DMZ

and type the DMZ client IP on the

DMZ IP Address

. Or you also can choose the DMZ host by the

up-down menu.

the

SYN attack

FIN/URG/PSH attack

Ping attack

Xmas Tree

attack

;

TCP reset attack

Null scanning attack

Ping of Death

attack

and

SYN/RST SYN/FIN attack