D-Link NetDefend DFL-CP310 User Manual page 261

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Using SmartDefense

This category allows you to configure various protections related to the FTP

protocol. It includes the following:

• FTP Bounce on page 245

• Block Known Ports on page 246

• Block Port Overflow on page 247

• Blocked FTP Commands on page 248

When connecting to an FTP server, the client sends a PORT command specifying

the IP address and port to which the FTP server should connect and send data. An

FTP Bounce attack is when an attacker sends a PORT command specifying the IP

address of a third

party instead of the attacker's own IP address. The FTP server

n sends data to the victim machine.

You can configure how FTP bounce attacks should be handled.

Chapter 9: Setting Your Security Policy

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