[Pkg-samba-maint] Bug#883939: Reproduce " smbclient failing to connect with default protocol SMB3_11"

Matthew Foulkes m.foulkes at blueyonder.co.uk
Wed Feb 20 21:32:54 GMT 2019

I agree that it was probably two separate issues.

As I explained in Message #44, my problem appeared to be NetApp 
specific. The administrator of the NetApp server to which I was trying 
to connect told me it was running ONTAP 9, which supports SMB 3.1.0 but 
not SMB 3.1.1. Assuming he was right, this explained most of my problem, 
except why smbclient was unable to negotiate the use of a mutually 
supported protocol.

It did look like Samba bug 13009, but I was definitely running 4.7.3. I 
guess the problem was out-of-date software on the NetApp server.


On Wed, Feb 20, 2019 at 09:31:59PM +0100, Mathieu Parent wrote:
>Le lun. 18 févr. 2019 à 16:06, David Sanders <david at sandersweb.net> a écrit :
>> Mattieu,
>> I just tried connecting to a Windows 10 machine with and without the "client max protocol = SMB3_10" directive in my smb.conf.
>> I can connect without a problem with the directive present, however when I comment it out I get the following error message:
>> protocol negotiation failed: NT_STATUS_CONNECTION_RESET
>> So either there's a bug with this version or something is screwy with the configuration on the Windows machine. It's not a big problem for me because the work around fixes it.
>> I am running stretch 9.8 with samba 2:4.5.16+dfsg-1
>Thanks for your feedback.
>I'm confused because there may be two different problems here.
>Matthew Foulkes's "protocol negotiation failed:
>https://bugzilla.samba.org/show_bug.cgi?id=13009, against NetApp, and
>which is fixed in 4.7.0 (i.e Debian buster), but Matthew's original
>report was already 4.7.3.
>David Sanders's "protocol negotiation failed:
>NT_STATUS_CONNECTION_RESET" is against Windows 10 and is still not
>fixed with 2:4.5.16+dfsg-1. Maybe fixed on buster (2:4.9.4+dfsg-3)? It
>looks like https://bugzilla.samba.org/show_bug.cgi?id=12863 fixed in
>Mathieu Parent

  email: m.foulkes at blueyonder.co.uk
  phone: 07905 505676

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