IT39954: BIP3380E ERROR WITH REASON 'MAC OR CIPHER NOT SUPPORTED BY THE SERVER' FROM FILE NODES WITH SFTP PROTOCOL

APAR status

• Closed as program error.

Error description

• If the server_host_key_algorithms returned by the SFTP server do
  not have ssh-rsa or ssh-dss in the list then File node fails to
  connect to the SFTP server and generates a BIP3380E error with
  reason 'mac or cipher not supported by the server'. Files nodes
  are expected to work with ecdsa-sha2-nistp256,
  ecdsa-sha2-nistp384, and ecdsa-sha2-nistp521
  server_host_key_algorithms as well.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V11.0 and V12.0 and IBM
  Integration Bus V10.0 using the File Nodes with SFTP transport.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  If the server_host_key_algorithms returned by the SFTP server do
  not have ssh-rsa or ssh-dss in the list then File node fails to
  connect to the SFTP server and generates a BIP3380E error with
  reason 'mac or cipher not supported by the server'. Files nodes
  are expected to work with
  ecdsa-sha2-nistp256,ecdsa-sha2-nistp384 and ecdsa-sha2-nistp521
  server_host_key_algorithms as well.
  

Problem conclusion

• The product now correctly establishes connection to the remote
  sftp server.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.26
  v11.0      11.0.0.16
  v12.0      12.0.3.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  INTEGRATION BUS

• Fixed component ID

  5724J0540

Applicable component levels