CHAP/MS-CHAP/MS-CHAPv2 + LDAP problem

[Vilius Šumskas]

Hello,

I'm having trouble authenticating from VPN box through Radius server to LDAP.
My VPN uses MS-CHAP challenge/response system for authentification. 
Packet that comes from VPN to Radius server looks like this:

User-Name = "admin"
MS-CHAP-Challenge = 0x45bc0700dd22f6795f77bbe0d986328c
MS-CHAP2-Response = 
0x0100313396a8ea58cd1155c817c50a00715b0000000000000000b03e5340a5ae3c2ac4e
9408d57eae02fcfdbffab3f983a1b
NAS-Port = 0
NAS-Port-Type = Virtual
Service-Type = Framed-User
Framed-Protocol = PPP
Framed-IP-Address = 10.1.1.202

But Radius can't autenticate to LDAP as there is no User-Password 
attribute in the packet. (rlm_ldap: Attribute "User-Password" is 
required for authentication).

Is there a way to do this authentification and NOT turning MS-CHAP 
protocol in VPN box? Are there some kind of preauth hooks in Radius?

I'm using freeradius-1.0.1-1.1.RHEL3 with openldap-2.0.27-17 and 
Netware 6.0 Directory Services.


P.S. I tried to turn MS-CHAP protocol and it works great with PAP or 
plain-text passwords. So everything is configured to work well with 
LDAP.

-- 
  Best Regards,

  Vilius Šumskas
  LNK TV system administrator
  mob.: +370 614 75713