host-identifier with IPv6
Chuck Anderson
cra at WPI.EDU
Fri Feb 27 00:59:02 UTC 2009
On Fri, Feb 27, 2009 at 01:39:57PM +1300, Eustace, Glen wrote:
> I can't see how I can use DHCPv6 without being able to match on
> Hardware address. All our v4/v6 data is in a database and the DHCP
> configs are built programmatically. If I can't use the only unique
> quantity I have to identify a host, I can't see how I can use DHCP
> at all.
The koolaid that the IETF would have us drink is that instead of
recording the unique MAC address of a machine in the DHCP database, we
instead record the DUID that the OS generates when it starts up the
first time. Then instead of having to update the MAC address when
replacing the Ethernet hardware, we get to update the DUID when the OS
is reinstalled. And we get to record multiple DUIDs, one for each OS
on a multi-boot machine. And we still have the problem of PXE
firmware using a different DUID that the OS.
More information about the dhcp-users
mailing list