D-Link NetDefend DFL-CP310 User Manual page 263

Table 50: Block Known Ports Fields
In this field... Do this...
Action Specify what action to take when the FTP server attempts to connect to a
well-known port, by selecting one of the following:
•
•
Block Port Overflow
FTP clients send PORT commands when connecting to the FTP sever. A PORT
command consists of a series o
commas.
To enforce compliance to the FTP standard and prevent potential attacks against
the FTP server, you can block PORT commands that contain a number greater than
255.
Chapter 9: Setting Your Security Policy
Block. Block the connection.
None. No action. This is the default.
f numbers between 0 and 255, separated by
Using SmartDefense
247