CIFS mount and smbclient with krb5 not work with dfs namespace

Hi,

I use pam mount to mount CIFS share from windows 2008 server with sec=krb5.

If I use the DFS namespace it not work :

[62131.983048]  CIFS VFS: Send error in SessSetup = -126
[62131.983286]  CIFS VFS: cifs_mount failed w/return code = -126

but with the serveur name it works; and with smbclient, I got with  
name space :

r-gcgp-111-a12:~# smbclient -k  //iut.iut-tlse3.fr/partage
ads_krb5_mk_req: krb5_get_credentials failed for [email protected]  
(Server not found in Kerberos database)
cli_session_setup_kerberos: spnego_gen_negTokenTarg failed: Server not  
found in Kerberos database
session setup failed: SUCCESS - 0

with server name :

r-gcgp-111-a12:~# smbclient -k  //p-cri-dc01.iut.iut-tlse3.fr/partage
OS=[Windows Server (R) 2008 Enterprise 6001 Service Pack 1]  
Server=[Windows Server (R) 2008 Enterprise 6.0]
smb: \>


Here my pam_mount config wich work :

<volume user="*" fstype="cifs" server="p-cri-dc01.iut.iut-tlse3.fr"  
path="partage/home/personnel/%(USER)" mountpoint="/home/%(USER)"  
options="sec=krb5,guest,iocharset=utf8,file_mode=0700,dir_mode=0700,nodev,nosuid"  
/>

and wich not work :

<volume user="*" fstype="cifs" server="iut.iut-tlse3.fr"  
path="partage/home/personnel/%(USER)" mountpoint="/home/%(USER)"  
options="sec=krb5,guest,iocharset=utf8,file_mode=0700,dir_mode=0700,nodev,nosuid"  
/>

If I mount the share using nmespace without sec=krb5 it works,
any idea ?

Regards,
Brice.

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               Brice Rouanet
          Technicien informatique
         Département Genie Chimique
     Centre de Ressources Informatiques
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