3Com 3CRWDR101A-75-US User Guide - Page 75

DMZ, Public IP Address - problems

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Firewall 73 4 You can enable or disable each Virtual Server entry by checking or unchecking the appropriate Enabled checkbox. 5 Click Apply to save the changes for each Virtual Server entry. DMZ 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. Figure 58 DMZ Screen 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: 1 Check the Enable 1-to-1 NAT checkbox. 2 Enter the last digits of the LAN IP address in the Client PC IP Address field. Enter the IP address (if known) that will be accessing the DMZ PC into the Public IP Address field, so that only the computer on the Internet at this address can access the DMZ PC without firewall protection. If the IP address is not known, or if more than one PC on the Internet will need to access the DMZ PC, then set the Public IP Address to 0.0.0.0. 3 Click Apply.

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Firewall
73
4
You can enable or disable each Virtual Server entry by checking or
unchecking the appropriate
Enabled
checkbox.
5
Click
Apply
to save the changes for each Virtual Server entry.
DMZ
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.
Figure 58
DMZ Screen
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:
1
Check the
Enable 1-to-1 NAT
checkbox.
2
Enter the last digits of the LAN IP address in the
Client PC IP Address
field.
Enter the IP address (if known) that will be accessing the DMZ PC into the
Public IP Address
field, so that only the computer on the Internet at this
address can access the DMZ PC without firewall protection. If the IP
address is not known, or if more than one PC on the Internet will need to
access the DMZ PC, then set the
Public IP Address
to
0.0.0.0
.
3
Click
Apply
.