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Axway SecureTransport SMB plugin cannot write data to SMB share if SMB3 encryption is required

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • Axway SecureTransport SMB plugin 2.1.7
  • SMB3 encryption

Issue

  • Axway SecureTransport SMB plugin 2.1.7 fails when trying to use SMB 3.1.1 to write data to ONTAP SMB share if the SVM requires SMB3 encryption
    • Error during transfer operation: SMB Transfer Site file push failed. Error message is [java.io.IOException: File creation error]
    • ::> cifs security show -vserver svm1 -fields is-smb-encryption-required
vserver is-smb-encryption-required
------- --------------------------
svm1    true
  • Workaround: On the SVM, make SMB3 encryption optional
    • cifs security modify -vserver svm1 -is-smb-encryption-required false
  • Packet trace shows that
    • Client successfully establishes an encrypted SMB3 session with ONTAP 
    • Client sends Encrypted SMB3 packets to ONTAP, spaced 15 seconds apart, to which ONTAP promptly replies
    • 15 seconds later, client sends [FIN, ACK] to close the TCP session

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