[lug] dhcp leases based on first 6 digits of mac address
David Anselmi
anselmi at anselmi.us
Wed Mar 3 20:25:46 MST 2004
hugh at math.byu.edu wrote:
> I'm trying to figure out how to grant a lease to any machine based on the
> manufacturer portion of the mac address (e.g. f0:0f:00:* should get a
> lease). The dhcp server denies unknown clients and needs to stay that
> way. Does anyone know how to tell the ISC dhcp server to treat f0:0f:00:*
> as known clients without having to list all 16^6 possible addresses?
It seems to be possible with version 3 of dhcpd:
match if substring (hardware, 1, 2) = 00:FF;
Not sure of the syntax, check the man page. If this is possible with
version 2 it is undocumented.
A complete example is at:
http://openvpn.sourceforge.net/INSTALL-win32.html
(grep for the above, it's a ways down).
HTH,
Dave
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