SATO S84NX, Operator'S Manual, Page: 214 / 588

[Network]
214
[Firewall]
Set the functions for the firewall.
A firewall can improve security. It prevents unauthorized access from external computers or malicious
programs. When the firewall is enabled, only the services and ports that are allowed will be able to
access the product.
• As a basic policy of filtering, all OUTPUT is allowed (ACCEPT) and both INPUT and
FORWARD are not allowed (DROP).
The setting items are as follows:
[Enable]
Enable or disable the firewall function.
The options are as follows:
Enabled
Enable the firewall function.
Disabled
Disable the firewall function.
[Allow Services And Ports]
Set the service or port to allow communication.
Available only if you have selected [Enabled] in the [Enable] menu.
• The product becomes accessible only through services or ports that are allowed in
[Allow Services And Ports].
The setting items are as follows:
Data Ports
Enable or disable access through data ports.
FTP
Enable or disable the functions for FTP.
The setting changes in conjunction with [Enable] in the [FTP] menu.
LPD
Enable or disable the LPD function.
The setting changes in conjunction with [Enable] in the [LPD] menu.
MAILC
When using the AEP (Application Enabled Printing) function, enable or disable port access for the
product's internal e-mail client function.
NTP
Enable or disable the functions for NTP.
The setting changes in conjunction with [Enable] in the [NTP] menu.