We have some window boxes misconfigured/unconfigured
that are requesting ip addresses for RAS type MAC
addresses and eating up our address pool.

For example, a machine with MAC 00508bd960d7
is also requesting ip addresses for
5241532000508bd960d7000000000000
5241532000508bd960d7000001000000
5241532000508bd960d7000002000000
5241532000508bd960d7000003000000
5241532000508bd960d7000004000000

In addition, we are using DDNS so that the latest
assigned ip address is improperly being assigned to
the machines host name.

What can I do in dhcpsd.cnf so that it will not
give out ip addresses to windows boxes sending
requests with RAS assigned MAC addresses.

Thanks in advance
sol