On Fri, 8 Jun 2018, m.r...@5-cent.us wrote:

We've been required to encrypt h/ds, and so have been rolling that out
over the last year or so. Thing is, you need to put in a password, of
course, to boot the system. My manager found a way to allow us to reboot
without being at the system's keyboard, a package called clevis. Works
fine... except in a couple of very special cases.

Those systems, the problem is that, due to older software, and *very*
expensive licenses that are tied to a MAC address, I have to spoof the MAC
address since my users got new(er) machines.

Clevis is trying to contact its password server, using the *real* MAC
address, but our DHCP has to serve the *spoofed* MAC address. I know, from
trying, that I can't have two entries for the same system. Can anyone
suggest a solution?

Nothing wrong with having two MAC addresses listed for one IP.  With ISC DHCP
the label for a host has to be unique, but the hostname doesn't.

jh
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