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Archived This topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.

‎09-26-2021 06:01 AM

HP Recommended
Product: HP Color LaserJet Pro MFP M479fdw

If the ipp User Access List is configured the printer ask for www authentication with qop=auth (due to RFC 2617/7616) but only accept response like RFC 2069.

 

qop is used to decide how to deliver the response.  If qop is present, the answer must be after RFC 2617/7616, otherwise after RFC 2069.

The printer accepts only RFC 2069 responses:

 

Response: HTTP/1.1 401 Unauthorized
WWW-Authenticate: Digest realm="IPP-Print", nonce="####", algorithm=MD5, qop="auth", opaque="####", username="guest"


Authorization: Digest username="user", realm="IPP-Print", nonce="####", uri="/ipp/print", response="####"

 

But with:

 

Authorization: Digest username="user", realm="IPP-Print", nonce="####", algorithm=MD5, qop=auth, opaque="####", cnonce="####", nc=00000002, uri="/ipp/print", response="####"

 

the job hangs and is not processed.

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