How can you be so sure that the values which are generated at the publisher could be same at the subscriber as well. Did you check what's being replicated at the subscriber end. I never told that there will be updates on the subscriber, pls. read the post carefully on what I meant to state over here.

You can check out technet articles for more info on this. This will give you a better idea on the inner working of identity range management.

Regards,

Faisal