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RFC 2865, "Remote Authentication Dial In User Service (RADIUS)", June 2000

Source of RFC: radius (ops)

Errata ID: 6915
Status: Reported
Type: Technical
Publication Format(s) : TEXT

Reported By: Oleg Pekar
Date Reported: 2022-04-02

Section 5 says:

      The Value field is zero or more octets and contains information
      specific to the Attribute.

It should say:

      The Value field is one or more octets and contains information
      specific to the Attribute.

Notes:

Section "5. Attributes" is ambiguous when it talks about the attribute value size:

First it says: "The Value field is zero or more octets", then it provides 5 possible value data types none of which allows a zero length value. For 'text' type it says: "Text of length zero (0) MUST NOT be sent; omit the entire attribute instead" and the same for 'string' type.

Section "5.26. Vendor-Specific" also says about the value of a vendor-specific attribute "The String field is one or more octets".

Thus the RFC allows empty values for attributes in general but prohibits for any declared types of the attributes.

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