Hi Chris,  I was able to change the value of  uid-range-enabled and gid-range-enabled to "No" then we tried to create new user in active directory without UID and GID but Isilon is still allowing to create home directory even though active directory user does not have UID/GID. We are expecting to denial access but it is not happening. Do you have any idea how can we prevent user login (without UID/GID) to Isilon ?  Thank you, 
Hello,  We are using Isilon with Active Directory for Windows and UNIX (rfc2307) systems as Authentication Providers. As part of Advance Active Directory Settings following options available and set.  If no UID is present in Active Directory :            Lookup User : Yes           Match Users with lowercase : Yes           Auto-assign UIDs : No  If no GID is present in Active Directory :            Lookup Group : Yes           Match Groups with lowercase : Yes           Auto-assign GIDs : No  Issue: When we add new user to active directory without UID/GID and new user try to access Isilon home SMB share (directory: /ifs/data/home/%0/%U) and user is able to login to Isilon and home drive gets created automatically and assign auto UID/GID by Isilon even though Advance Active Directory Settings have Auto-assign UIDs : No and Auto-assign GIDs : No. We expect new user should get denial access to Isilon since lack of UID and GID in active directory. Please advise for this permission issue.  Thank you,
Isilon - Active Directory Auto-assign UIDs and GIDs : "No" is not working.