Hi, All, I build a LDAP and FreeRadius(Version:3.0.13), and change mods-available/ldap with ------------------------------------------ update { # Radius Dictionary LDAP control:Password-With-Header += 'userPassword' control:NT-Password := 'ntPassword' reply:Reply-Message := 'radiusReplyMessage' reply:Attr-26 := "DepartmentNumber" ------------------------------------------- Here DepartmentNumber is an attribute of uid=test, cn=users, dc=xxx,dc=com and its value is 0x483D342C20493D34(the hex-encoding of the "H=4, I=4" string.) this part is related to SuperMicro as it needs a speical packet listed here https://www.supermicro.com/support/faqs/faq.cfm?faq=22374(This is verified successfully). The rest part of LDAP is fine. but when I test, something comes up. ====================== (0) ldap: control:Password-With-Header += '{SSHA512}5Bz1gQ1mRfhuXY67ecj8XHzrnRzU/X8H0erumBdO1auZ1xTRjH22/Tz+pgC/SpS+x3x0HfVSjqt8AH0vrG5FNk33BWULZfy/' (0) ldap: WARNING: Failed parsing value "0x483D342C20493D34" for attribute Vendor-Specific: Must use 'Attr-26 = ...' instead of 'Vendor-Specific = ...' ================================ So I'm confused with it, what's wrong with my conf? BTW, a similar problem is listed here http://lists.freeradius.org/pipermail/freeradius-users/2017-November/089771.... Thanks, -hongquan