Exclude IP address(es)

This module would be even better if there were a way to list one or more IP addresses that the code would never block regardless of the total number of failed login attempts from that address. One of my current clients would like to use this module, but they are unable to, because their intranet has a single IP address for logging into the web site, which is hosted externally; so all it takes is for several people to type in a wrong password, and then everyone in the organization is blocked.