Hi Metze: Thanks for bringing this to my attention. I have filed a bug against MS-SPNG to correct the value of GUID for PKU2U.
Please let me know if this does not answer your question. Regards, Obaid Farooqi Sr. Escalation Engineer | Microsoft -----Original Message----- From: Stefan Metzmacher <[email protected]> Sent: Thursday, May 14, 2026 7:09 AM To: Obaid Farooqi <[email protected]>; [email protected] Cc: [email protected]; Microsoft Support <[email protected]> Subject: Re: [cifs-protocol] [EXTERNAL] NEGOEX uninitiated MESSAGE_TYPE_ACCEPTOR_NEGO in SMB2 negprot response - TrackingID#2604270040005966 Hi Obaid, >> We already cover negTokenInit2 in MS‑SPNG and note that it can include a >> mech token. The metadata message format is also documented in MS‑NEGOEX. And MS-SPNG talks about 235F69AD-73FB-4dbc-8203-0629E739339B for PKU2U, I guess this refers to an AuthSchema GUID from NEGOEX. Captures show the AuthSchema GUID is 0d53335c-f9ea-4d0d-b2ec-4ae3786ec308 instead. Can you check that? Thanks! metze _______________________________________________ cifs-protocol mailing list [email protected] https://lists.samba.org/mailman/listinfo/cifs-protocol
