|The rule is you need a CAL for every user or device that is authenticating. So if you have a network with 30 users, you need to have 30 user CALs. Or, if you wanted to do per device, if you had 30 computers, you need to have 30 device CALs. Most organizations go with per user because as you add remote computers or multiple computers per user, it becomes complicated. CAL's are not enforced by Windows 2008, it's strictly a legal licensing matter.|
There is one "workaround" not really worth mentioning. The CAL rule applies only with authentication. If you were to allow anonymous access to your file shares, you wouldn't need CALs.
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