Old password 'grace period'

[John Kane]

I've been asked to implement freeradius on a proprietary system that
uses the concept of a password 'grace period', a brief time period
during which both the old and new passwords should be allowed. Is this
possible with freeradius?

The system uses pptp client access (MS-CHAP) with user/passwords in a
(proprietary) postgres DB.  We are working with freeradius version
1.1.3.

Thanks in advance,
John  



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