D-Link DFL-100 User Guide
31
DMZ
NAT may conflict with certain interactive applications such as video
conferencing or playing Internet video games. For these applications, a NAT
bypass can be set up using the DMZ port and a corresponding DMZ IP
address. The DMZ IP address is “ visible” to the Internet (or WAN) and does
not benefit from the full protection of the NAT function. Therefore it is
advisable that other security precautions be enabled to protect the DMZ
device and other computers and devices on the LAN that may be exposed. It
may be wise to run some sort of firewall software on these computers and
devices.
For example, if you want to use video conferencing and still use NAT, you
can use the DMZ port and DMZ IP address. In this case, you must have a PC
or server through which video conferencing will take place, that is assigned
the DMZ IP address.
By default, the DMZ IP address is 192.168.1.1 with a subnet mask of
255.255.255.0. Note that the DMZ IP address is on a different subnet (the
192.168.1.x subnet) than the LAN ports (by default, the LAN ports are
assigned to the 192.168.0.x subnet).
conferencing or playing Internet video games. For these applications, a NAT
bypass can be set up using the DMZ port and a corresponding DMZ IP
address. The DMZ IP address is “ visible” to the Internet (or WAN) and does
not benefit from the full protection of the NAT function. Therefore it is
advisable that other security precautions be enabled to protect the DMZ
device and other computers and devices on the LAN that may be exposed. It
may be wise to run some sort of firewall software on these computers and
devices.
For example, if you want to use video conferencing and still use NAT, you
can use the DMZ port and DMZ IP address. In this case, you must have a PC
or server through which video conferencing will take place, that is assigned
the DMZ IP address.
By default, the DMZ IP address is 192.168.1.1 with a subnet mask of
255.255.255.0. Note that the DMZ IP address is on a different subnet (the
192.168.1.x subnet) than the LAN ports (by default, the LAN ports are
assigned to the 192.168.0.x subnet).