Setting up a VPN server with pptp and RADIUS for all sorts of clients

Thu Feb 8 14:40:49 CET 2007

Phil Mayers wrote:
> robert wrote:
>
>   
>> A log sent from the Radius Admin shows that the mschap module fails to 
>> find User-Password (this is how I have understood it!) and refuses to 
>> validate the user.
>>     
>
>   
>> here is the part I am talking about:
>>      FROM Radius log:
>>
>>         auth: type "MS-CHAP"
>>
>>     Processing the authenticate section of radiusd.conf
>>     modcall: entering group MS-CHAP for request 0
>>     rlm_mschap: No User-Password configured.  Cannot create LM-Password.
>>     rlm_mschap: No User-Password configured.  Cannot create NT-Password.
>>     rlm_mschap: Told to do MS-CHAPv2 for dupontd with NT-Password    
>>                
>>     rlm_mschap: FAILED: No NT/LM-Password.  Cannot perform authentication.
>>
>> But I am sure that the field User password contains the valid password I 
>> am trying to use.
>>     
>
> It definitely doesn't. The server doesn't make elementary mistakes like 
> that.
>
> Could you please post the entire output of FR run under debug (-X 
> switch) so we can see the details.
> - 
> List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
>   
I didn't meen a mistake, but was wondering if my radiusclient had a 
wrong mapping, that requests NT-password instead of User-password (as an 
example)
Here is the output from the radius server:
      

    Ready to process requests.
    rad_recv: Access-Request packet from host xxx.xxx.xxx.xxx:1050,
    id=109, length=152
           Service-Type = Framed-User
           Framed-Protocol = PPP
           User-Name = "test"
           MS-CHAP-Challenge = 0x68ac020b69febf7f1cf6338a1ed1c218
           MS-CHAP2-Response =
    0x0800e2f1b3176070ca65916fe24cce80d271000000000000000047f1823b3c33996107424059c73866a135b07e51e08c2f4a

           Calling-Station-Id = "yyy.yyy.yyy.yyy"
           NAS-IP-Address = xxx.xxx.xxx.xxx
           NAS-Port = 0
     Processing the authorize section of radiusd.conf
    modcall: entering group authorize for request 0
    radius_xlat:  '/var/log/radius/radacct//detail-07022007'
    rlm_detail:
    /var/log/radius/radacct/%{Client-IP-Address}/detail-%d%m%Y expands
    to /var/log/radius/radacct//detail-07022007
     modcall[authorize]: module "detail" returns ok for request 0
     modcall[authorize]: module "attr_filter" returns noop for request 0
     modcall[authorize]: module "chap" returns noop for request 0
     rlm_mschap: Found MS-CHAP attributes.  Setting 'Auth-Type  = mschap'
     modcall[authorize]: module "mschap" returns ok for request 0
       rlm_realm: No '@' in User-Name = "test", looking up realm NULL
       rlm_realm: Found realm "NULL"
       rlm_realm: Adding Stripped-User-Name = "test"
       rlm_realm: Proxying request from user dupontd to realm NULL
       rlm_realm: Adding Realm = "NULL"
       rlm_realm: Authentication realm is LOCAL.
     modcall[authorize]: module "suffix" returns noop for request 0
     rlm_eap: No EAP-Message, not doing EAP
     modcall[authorize]: module "eap" returns noop for request 0
     modcall[authorize]: module "files" returns notfound for request 0
    rlm_ldap: - authorize
    rlm_ldap: performing user authorization for test
    radius_xlat: 
    '(|(&(uid=test)(ulhcharte=TRUE))(&(eduPersonPrincipalName=test)(ulhcharte=TRUE)))'

    radius_xlat:  'dc=univ-lehavre,dc=fr'
    rlm_ldap: ldap_get_conn: Checking Id: 0
    rlm_ldap: ldap_get_conn: Got Id: 0
    rlm_ldap: attempting LDAP reconnection
    rlm_ldap: (re)connect to zzz.zzz.zzz.zzz:389, authentication 0
    rlm_ldap: setting TLS CACert File to /etc/ssl/certs/cachain.txt
    rlm_ldap: setting TLS CACert Directory to /etc/ssl/certs/
    rlm_ldap: setting TLS Require Cert to demand
    rlm_ldap: starting TLS
    rlm_ldap: bind as / to ducati.univ-lehavre.fr:389
    rlm_ldap: waiting for bind result ...
    rlm_ldap: Bind was successful
    rlm_ldap: performing search in dc=univ-lehavre,dc=fr, with filter
    (|(&(uid=test)(ulhcharte=TRUE))(&(eduPersonPrincipalName=test)(ulhcharte=TRUE)))

    rlm_ldap: looking for check items in directory...
    rlm_ldap: Adding macAddress as Mac-Addr, value 00:30:48:24:A9:C3 &
    op=21
    rlm_ldap: looking for reply items in directory...
    rlm_ldap: Adding radiusTunnelType as Tunnel-Type, value 13 & op=11
    rlm_ldap: Adding radiusTunnelMediumType as Tunnel-Medium-Type, value
    6 & op=11
    rlm_ldap: Adding radiusTunnelPrivateGroupId as
    Tunnel-Private-Group-Id, value 40 & op=11
    rlm_ldap: Adding eduPersonPrimaryAffiliation as Class, value member
    & op=11
    rlm_ldap: Adding ulhcharte as Filter-Id, value TRUE & op=11
    rlm_ldap: Adding macAddress as Mac-Addr, value 00:30:48:24:A9:C3 &
    op=11
    rlm_ldap: user test authorized to use remote access
    rlm_ldap: ldap_release_conn: Release Id: 0
     modcall[authorize]: module "ldap" returns ok for request 0
    rlm_checkval: Item Name: Calling-Station-Id, Value: 194.254.109.252
    rlm_checkval: Could not find attribute named Calling-Station-Id in
    check pairs
     modcall[authorize]: module "checkval" returns notfound for request 0
    modcall: leaving group authorize (returns ok) for request 0
     rad_check_password:  Found Auth-Type MS-CHAP
    auth: type "MS-CHAP"
     Processing the authenticate section of radiusd.conf
    modcall: entering group MS-CHAP for request 0
     rlm_mschap: No User-Password configured.  Cannot create LM-Password.
     rlm_mschap: No User-Password configured.  Cannot create NT-Password.
     rlm_mschap: Told to do MS-CHAPv2 for dupontd with NT-Password
     rlm_mschap: FAILED: No NT/LM-Password.  Cannot perform authentication.
     rlm_mschap: FAILED: MS-CHAP2-Response is incorrect
     modcall[authenticate]: module "mschap" returns reject for request 0
    modcall: leaving group MS-CHAP (returns reject) for request 0
    auth: Failed to validate the user.
    Login incorrect: [test] (from client yyy.yyy.yyy.yyy port 0 cli
    yyy.yyy.yyy.yyy)
    rad_lowerpair:  Stripped-User-Name now 'test'
    rad_rmspace_pair:  Stripped-User-Name now 'test'
     Processing the authorize section of radiusd.conf
    modcall: entering group authorize for request 0
    radius_xlat:  '/var/log/radius/radacct//detail-07022007'
    rlm_detail:
    /var/log/radius/radacct/%{Client-IP-Address}/detail-%d%m%Y expands
    to /var/log/radius/radacct//detail-07022007
     modcall[authorize]: module "detail" returns ok for request 0
     modcall[authorize]: module "attr_filter" returns noop for request 0
     modcall[authorize]: module "chap" returns noop for request 0
     rlm_mschap: Found MS-CHAP attributes.  Setting 'Auth-Type  = mschap'
     modcall[authorize]: module "mschap" returns ok for request 0
       rlm_realm: Request already proxied.  Ignoring.
     modcall[authorize]: module "suffix" returns noop for request 0
     rlm_eap: No EAP-Message, not doing EAP
     modcall[authorize]: module "eap" returns noop for request 0
     modcall[authorize]: module "files" returns notfound for request 0
    rlm_ldap: - authorize
    rlm_ldap: performing user authorization for test
    radius_xlat: 
    '(|(&(uid=test)(ulhcharte=TRUE))(&(eduPersonPrincipalName=TEST)(ulhcharte=TRUE)))'

    radius_xlat:  'dc=univ-lehavre,dc=fr'
    rlm_ldap: ldap_get_conn: Checking Id: 0
    rlm_ldap: ldap_get_conn: Got Id: 0
    rlm_ldap: performing search in dc=univ-lehavre,dc=fr, with filter
    (|(&(uid=test)(ulhcharte=TRUE))(&(eduPersonPrincipalName=test)(ulhcharte=TRUE)))

    rlm_ldap: looking for check items in directory...
    rlm_ldap: Adding macAddress as Mac-Addr, value 00:30:48:24:A9:C3 &
    op=21
    rlm_ldap: looking for reply items in directory...
    rlm_ldap: Adding radiusTunnelType as Tunnel-Type, value 13 & op=11
    rlm_ldap: Adding radiusTunnelMediumType as Tunnel-Medium-Type, value
    6 & op=11
    rlm_ldap: Adding radiusTunnelPrivateGroupId as
    Tunnel-Private-Group-Id, value 40 & op=11
    rlm_ldap: Adding eduPersonPrimaryAffiliation as Class, value member
    & op=11
    rlm_ldap: Adding ulhcharte as Filter-Id, value TRUE & op=11
    rlm_ldap: Adding macAddress as Mac-Addr, value 00:30:48:24:A9:C3 &
    op=11
    rlm_ldap: user test authorized to use remote access
    rlm_ldap: ldap_release_conn: Release Id: 0
     modcall[authorize]: module "ldap" returns ok for request 0
    rlm_checkval: Item Name: Calling-Station-Id, Value: yyy.yyy.yyy.yyy
    rlm_checkval: Could not find attribute named Calling-Station-Id in
    check pairs
     modcall[authorize]: module "checkval" returns notfound for request 0
    modcall: leaving group authorize (returns ok) for request 0
     rad_check_password:  Found Auth-Type MS-CHAP
    auth: type "MS-CHAP"
     Processing the authenticate section of radiusd.conf
    modcall: entering group MS-CHAP for request 0
     rlm_mschap: No User-Password configured.  Cannot create LM-Password.
     rlm_mschap: No User-Password configured.  Cannot create NT-Password.
     rlm_mschap: Told to do MS-CHAPv2 for test with NT-Password
     rlm_mschap: FAILED: No NT/LM-Password.  Cannot perform authentication.
     rlm_mschap: FAILED: MS-CHAP2-Response is incorrect
     modcall[authenticate]: module "mschap" returns reject for request 0
    modcall: leaving group MS-CHAP (returns reject) for request 0
    auth: Failed to validate the user.
    Login incorrect: [test] (from client yyy.yyy.yyy.yyy port 0 cli
    yyy.yyy.yyy.yyy)
    Delaying request 0 for 1 seconds
    Finished request 0
    Going to the next request
    --- Walking the entire request list ---
    Waking up in 1 seconds...
    --- Walking the entire request list ---
    Sending Access-Reject of id 109 to xxx.xxx.xxx.xxx port 1050


Regards,
    Robert