Leases on Dynamic Updates?

[dan at dcrdev.demon.co.uk]

Hi all,

One of the drafts for Bonjour/Rendezvous (http://files.dns-sd.org/draft-sekar-dns-ul.txt) suggests an approach to applying leases to dynamic updates such that they can be automatically deleted should the originating client die.

Does anyone know if BIND supports either the above or a similar mechanism (e.g. http://www3.ietf.org/proceedings/99jul/I-D/draft-ietf-dnsind-dddd-01.txt)?

Many thanks,

Dan.