CIFS and Mac OS

Hi,

we did set up our environment with CIFS (OES2SP3 cluster, NCS, NSS) and are trying to get our Macs connected but only when we lower our security level and do allow more than only NTLMv2 the macs are able to connect (tried with a 10.6.8 and a 10.7).

Is there a setting switch to get the Macs to connect to CIFS shares with NTLMv2?

I tried already
/var/db/smb.conf (included in /etc/smb.conf)
[global]
ntlm auth = no
client ntlmv2 auth = yes
lanman auth = no

/etc/nsmb.conf
[default]
minauth=ntlmv2

with no success

Regards,

Bettina
University of Hamburg, RRZ