APAR status
Closed as program error.
Error description
When using explicit FTP over TLS in the File Nodes, if the remote server sends a welcome message that spans multiple TCP/IP packets then the product interprets the second such packet as containing the response code for the AUTH TLS request. If this packet does not have a status code of 234 then the product will interpret this as a failure to switch to TLS and will immediately close the comand socket resulting in an exception like the following: BIP3384E: File node ''File Read1'' in message flow ''Nec_Customer''. An unexpected reply has been received from ''FTPS'' server ''hostName'. The command and reply are: ''Negative response received on AUTH: 220''. Additional Symptom(s) Search Keyword(s):FTP over TLS, File Nodes, AUTH TLS, BIP3384E,
Local fix
Problem summary
**************************************************************** USERS AFFECTED: All users of IBM Integration Bus version 10 or App Connect version 11 using FTPS with the File Nodes. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: <span style="background-color:rgb(255, 255, 255)">When using explicit FTP over TLS in the File Nodes, if the </span><span style="background-color:rgb(255, 255, 255)">remote server sends a welcome message that spans multiple </span><span style="background-color:rgb(255, 255, 255)">TCP/IP packets then the product interprets the second such </span><span style="background-color:rgb(255, 255, 255)">packet as containing the response code for the AUTH TLS request.</span> <span style="background-color:rgb(255, 255, 255)"> </span> <span style="background-color:rgb(255, 255, 255)"> </span> <span style="background-color:rgb(255, 255, 255)">If this packet does not have a status code of 234 then the </span><span style="background-color:rgb(255, 255, 255)">product will interpret this as a failure to switch to TLS and </span><span style="background-color:rgb(255, 255, 255)">will immediately close the command socket resulting in an </span><span style="background-color:rgb(255, 255, 255)">exception like the following: </span> <span style="background-color:rgb(255, 255, 255)"> </span> <span style="background-color:rgb(255, 255, 255)"> </span> <span style="background-color:rgb(255, 255, 255)">BIP3384E: File node ''File Read1'' in message flow </span><span style="background-color:rgb(255, 255, 255)">''Nec_Customer''. An unexpected </span><span style="background-color:rgb(255, 255, 255)">reply has been received from ''FTPS'' server ''hostName'. The </span><span style="background-color:rgb(255, 255, 255)">command and reply are: ''Negative response received on AUTH: </span><span style="background-color:rgb(255, 255, 255)">220''. </span>
Problem conclusion
The File Nodes now correctly recognise multi-packet welcome messages from FTPS servers and this error no longer occurs. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v10.0 10.0.0.18 v11.0 11.0.0.6 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 number
IT29784
Reported component name
INTEGRATION BUS
Reported component ID
5724J0540
Reported release
A00
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-07-19
Closed date
2019-09-30
Last modified date
2019-09-30
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
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSNQK6","label":"IBM Integration Bus"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"10.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
30 September 2019