3Com OfficeConnect 3CRWDR100B-72, User Manual

Page: 67 / 118

Firewall 67
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Copy the MAC address by selecting the name of the computer from
the
DHCP Clients List , and then in the MAC Address Filtering List click
Copy To .
Click Apply to save the settings.
DMZ
Figure 57 DMZ Screen
If you have a client PC that cannot run an Internet application properly
from behind the firewall, you can open the client up to unrestricted
two-way Internet access. This may be necessary if the NAT feature is
causing problems with an application such as a game or video
conferencing application.
Use this feature on a temporary basis. The computer in the DMZ is not
protected from hacker attacks.
To put a computer in the DMZ, enter the last digits of its LAN IP address in
the
Static IP field. Put the IP address (if known) that will be accessing the
DMZ PC into the Public IP field, so that only the computer on the Internet
at this address can access this PC without firewall protection. If the IP
address is not known, or if more than one PC on the Internet will need to
access this PC, then set the
Public IP to 0.0.0.0 .
Click Apply .