Cisco Cisco Firepower Management Center 4000

Page of 1844
 
25-26
FireSIGHT System User Guide
 
Chapter 25      Using Application Layer Preprocessors 
  Decoding FTP and Telnet Traffic
The FTP and Telnet Configuration page appears.
A message at the bottom of the page identifies the intrusion policy layer that contains the configuration. 
See 
 for more information.
Tip
For more information on configuring the other options on this page, see 
Step 5
You have two options:
  •
Add a new server profile. Click the add icon (
) next to 
FTP Server
 on the left side of the page. The 
Add Target pop-up window appears. Specify one or more IP addresses for the client in the 
Server 
Address 
field and click 
OK
.
You can specify a single IP address or address block, or a comma-separated list of either or both. 
You can specify up to 1024 characters, and you can configure up to 255 policies, including the 
default policy. For information on using IPv4 and IPv6 address blocks in the FireSIGHT System, 
see 
.
A new entry appears in the list of FTP servers on the left side of the page, highlighted to indicate 
that it is selected, and the Configuration section updates to reflect the current configuration for the 
profile you added.
  •
Modify the settings for an existing server profile. Click the configured address for a profile you have 
added under 
FTP Server
 on the left side of the page, or click 
default
.
Your selection is highlighted and the Configuration section updates to display the current 
configuration for the profile you selected. To delete an existing profile, click the delete icon (
next to the profile you want to remove.
Step 6
Optionally, you can modify any of the following under 
Configuration
:
  •
Modify the address or addresses listed in the 
Networks
 field and click any other area of the page.
The highlighted address updates on the left side of the page.
Note that you cannot modify the setting for 
Network
 in the default profile. The default profile applies 
to all servers on your network that are not identified in another profile.
  •
Specify any 
Ports
 that should be monitored for FTP traffic. Port 21 is the well-known port for FTP 
traffic.
Note
Add the same list of ports indicated here to the TCP client reassembly port list. For more 
information on configuring TCP reassembly ports, see 
.
  •
Update the FTP commands used to transfer files from server to client in the 
File Get Commands
 field.
  •
Update the FTP commands used to transfer files from client to server in the 
File Put Commands
 field.
Note
Do not change the values in the 
File Get Commands
 and 
File Put Commands
 field unless directed to 
do so by Support.
  •
To detect additional FTP commands outside of those checked by default by the FTP/Telnet 
preprocessor, type the commands, separated by spaces in the 
Additional FTP Commands
 field.
You can add as many additional FTP commands as needed.