D-Link DFL-80 User Manual - Page 134

Trouble-Shooting

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Trouble-Shooting Q : How to upgrade the DFL-80's software? A: The DFL-80's software and system parameters are all stored in the Flash Memory. The Flash Memory is re-writable and re-readable. Users can contact the distributors to obtain the newest version of software. After having the newest version of software from the distributor, please store it in the hard disk, then connect to the firewall's WebUI, enter Software Update of the Administration menu, click the file name of the newest version of software, then click OK. The updating process won't overwrite the system configuration, so it is not necessary to save it before updating the software. Q : How to back up system configuration? A : To change system parameters settings without destroying the original system configuration, the user can choose Export System Settings to Client in Settings under the Administration menu. Users can upload the backup system configuration from the hard disk to the firewall in Import System setting from Client. Q:Q : Which server can be installed in DMZ? A: The DFL-80 provides three Interface Ports to divide the networks into internal networks, external networks, and DMZ. The internal networks use private IP addresses, which routers can't transfer. Therefore server's IP address needs to be a real IP address instead of a private one. External Internet users can't connect to any server with private IP address in the internal networks directly. DMZ employs real IP addresses. By setting the permission in DMZ policies to allow packets to flow through, servers inside DMZ can exchange packet with any Internet IP address. There is no restriction about which kind of server is used in DMZ. 134

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134
Trouble-Shooting
Q :
How to upgrade the DFL-80’s software?
A :
The DFL-80’s software and system parameters are all stored in the
Flash Memory. The Flash Memory is re-writable and re-readable. Users
can contact the distributors to obtain the newest version of software.
After having the newest version of software from the distributor, please
store it in the hard disk, then connect to the firewall’s WebUI, enter
Software Update of the Administration menu, click the file name of the
newest version of software, then click OK.
The updating process won’t overwrite the system configuration, so it is
not necessary to save it before updating the software.
Q :
How to back up system configuration?
A :
To change system parameters settings without destroying the original
system configuration, the user can choose Export
System Settings
to
Client in Settings under the Administration menu. Users can upload the
backup system configuration from the hard disk to the firewall in Import
System setting from Client.
Q:
Q :
Which server can be installed in DMZ?
A :
The DFL-80 provides three Interface Ports to divide the networks into
internal networks, external networks, and DMZ. The internal networks
use private IP addresses, which routers can’t transfer. Therefore server’s
IP address needs to be a real IP address instead of a private one.
External Internet users can’t connect to any server with private IP
address in the internal networks directly. DMZ employs real IP
addresses. By setting the permission in DMZ policies to allow packets
to flow through, servers inside DMZ can exchange packet with any
Internet IP address.
There is no restriction about which kind of server is
used in DMZ.