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Cisco Bug: CSCta23301 - FTP: ctrl and data conn do not get terminated when cp'n 0 byte fileftp

Last Modified

Mar 02, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2(33)SXH8 12.4T

Description (partial)

Symptoms:
FTP control and data connections appear in ESTAB state in the output of sh tcp br all after copying a zero byte file. This would usually appear for a time period of 2-3 mins after the completion of the copy operation.
Also, in case of a non-zero byte file copy tracebacks appear when doing active ftp, though the copy operation is successful.

Condition:
"no ip ftp passive" should be configured to enable active ftp.
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