When you LUM-enable a user or group, the user and group are assigned a user ID(UID) and group ID (GID) from a predetermined range of numbers. The default range of numbers is 600-65500. You must ensure that this range does not overlap with the range of UID or GID numbers of a local Linux system. If the range overlaps, you might have two users (eDirectory and Linux) associated with the same UID and GID, which could pose security risks. Additionally, if the range is modified, ensure that it does not overlap with the DSfW range which starts from 1049076.