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Do you have fixup defined for ftp on your ASA.<br />
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&gt;fixup protocol ftp 21<br />
<br />
See if you can find this in your config.
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Do you have fixup defined for ftp on your ASA.

>fixup protocol ftp 21

See if you can find this in your config.

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Background : &nbsp;Cisco 5510 configured to allow all FTP(ports 20 and 21) to forward to a server in a dmz. &nbsp;When tested port forwarding works fine. &nbsp;Can log into the server but &quot;browsing&quot; fails.(command line works completely fine) &nbsp;FTP server (make is Ability) is set to allow PASV on ports 1024 to 5000. &nbsp;The Cisco 5510 has a setting for FTP to be in Passive Mode. &nbsp;But when remote brower has internet option set to allow Passive mode, you cannot browse the files. &nbsp;Remove the passive mode and it works. &nbsp;I am assuming the 5510 is causing the problem even though the setting for FTP is set to passive I am assuming there are some other rules I need to set to further enable it beyond the ports 20 and 21 forwarding. &nbsp;All suggestions appreciated.(servers and remote machines all Windows based using IE)
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Background :  Cisco 5510 configured to allow all FTP(ports 20 and 21) to forward to a server in a dmz.  When tested port forwarding works fine.  Can log into the server but "browsing" fails.(command line works completely fine)  FTP server (make is Ability) is set to allow PASV on ports 1024 to 5000.  The Cisco 5510 has a setting for FTP to be in Passive Mode.  But when remote brower has internet option set to allow Passive mode, you cannot browse the files.  Remove the passive mode and it works.  I am assuming the 5510 is causing the problem even though the setting for FTP is set to passive I am assuming there are some other rules I need to set to further enable it beyond the ports 20 and 21 forwarding.  All suggestions appreciated.(servers and remote machines all Windows based using IE)

FTP settings on a CISCO ASA 5510 -issues with Passive mode

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.