SMB 311 Negotiates and then stops

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SMB 311 Negotiates and then stops

Samba - General mailing list
We are running Samba-4.6.6 and are running into an issue where it negotiates to a NetApp server but then the client stops the connection.

8262       2017-10-12 09:32:16.198917        10.136.78.14       10.128.101.128  TCP        66           45848 → 445 [FIN, ACK] Seq=403 Ack=581 Win=16768 Len=0 TSval=11546007 TSecr=3316317046

This is at a customer site, and we cannot recreate it here due to lack of server. Attached is the wireshark trace. Not sure what the client doesn’t like.

Mike

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Re: SMB 311 Negotiates and then stops

Samba - General mailing list
Re-sending ... We tend to see a lot of issues with NetApp servers and SMB 311. Not sure what might be wrong with their response packet, that 4.6.6 doesn't like.

~ Mike


-----Original Message-----
From: samba [mailto:[hidden email]] On Behalf Of Tompkins, Michael via samba
Sent: Monday, October 23, 2017 2:06 PM
To: [hidden email]
Cc: Karuppiah, Thangavadivel <[hidden email]>; USA Xerox Samba <[hidden email]>; Potta, Kishor (HCL) <[hidden email]>; Futrell, Earl <[hidden email]>
Subject: [Samba] SMB 311 Negotiates and then stops

We are running Samba-4.6.6 and are running into an issue where it negotiates to a NetApp server but then the client stops the connection.

8262       2017-10-12 09:32:16.198917        10.136.78.14       10.128.101.128  TCP        66           45848 → 445 [FIN, ACK] Seq=403 Ack=581 Win=16768 Len=0 TSval=11546007 TSecr=3316317046

This is at a customer site, and we cannot recreate it here due to lack of server. Attached is the wireshark trace. Not sure what the client doesn’t like.

Mike

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Re: SMB 311 Negotiates and then stops

Samba - General mailing list
On Tue, 31 Oct 2017 16:06:13 +0000
"Tompkins, Michael via samba" <[hidden email]> wrote:

> Re-sending ... We tend to see a lot of issues with NetApp servers and
> SMB 311. Not sure what might be wrong with their response packet,
> that 4.6.6 doesn't like.
>
> ~ Mike
>
>
> -----Original Message-----
> From: samba [mailto:[hidden email]] On Behalf Of
> Tompkins, Michael via samba Sent: Monday, October 23, 2017 2:06 PM
> To: [hidden email]
> Cc: Karuppiah, Thangavadivel <[hidden email]>; USA Xerox
> Samba <[hidden email]>; Potta, Kishor (HCL)
> <[hidden email]>; Futrell, Earl <[hidden email]>
> Subject: [Samba] SMB 311 Negotiates and then stops
>
> We are running Samba-4.6.6 and are running into an issue where it
> negotiates to a NetApp server but then the client stops the
> connection.
>
> 8262       2017-10-12 09:32:16.198917        10.136.78.14
> 10.128.101.128  TCP        66           45848 → 445 [FIN, ACK]
> Seq=403 Ack=581 Win=16768 Len=0 TSval=11546007 TSecr=3316317046
>
> This is at a customer site, and we cannot recreate it here due to
> lack of server. Attached is the wireshark trace. Not sure what the
> client doesn’t like.
>
> Mike
>

Unfortunately, this list strips off attachments, so it might help if
you post the wireshark trace somewhere and then post a link here.

It might also help if you can post the smb.conf files from both
machines.

Rowland
 

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