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What versions of SMB are supported by IBM i NetServer?

Product Documentation


Abstract

What versions of SMB are supported by IBM i NetServer?

Content

IBM i NetServer versions up to, and including, V7R1 support SMB 1.0.
IBM i NetServer V7R2 supports SMB 1.0 and SMB 2.0 (PTFs required to add SMB 2.0 Support).
      See IBM Technical Note N1022198 'SMB2 Support for IBM i 7.2' at:
      http://www-01.ibm.com/support/docview.wss?uid=nas8N1022198
IBM i NetServer V7R3 supports SMB 1.0 and SMB 2.0 (SMB 2.0 added at V7R3 GA level).
      See IBM Technical Note N1021710 'SMB and SMB2 Support at IBM i 7.3' at:
     http://www-01.ibm.com/support/docview.wss?uid=nas8N1021710
IBM i NetServer V7R4 supports SMB 1.0, SMB 2.0, and SMB 3.0 (SMB 3.0 added at V7R4 GA level).
Microsoft® Documentation provides this information about the versions of SMB available for various Windows® OS versions:

Notes:
1) The availability of multiple protocols allows the client PC and the IBM i NetServer to negotiate the protocol to be used at connection time.  The connection uses the highest common protocol level that both sides support.
2) Supporting a specific SMB version does not necessarily mean that NetServer supports all features of that version.  Individual features are negotiated by the client and the server at connection time.
3) SMBv3 adds support for larger read and write sizes (512 Kb) to improve performance in high latency networks.  It also adds end to end data encryption for entire client and server conversations. 
4) In order to set up encrypted connections that use SMBv3, an updated NETS menu must be used. There is no option to set share encryption in Navigator for i.  PTF SI70746 adds this new functionality, it was included with the 9304 cumulative PTF package.  After you apply the PTF, the NETS menu must be rebuilt following the instructions in this technote:  Manage IBM i NetServer without Navigator - GO NETS

Document Location

Worldwide

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Document Information

Modified date:
24 June 2021

UID

ibm10871632