If you look at the instant messaging systems, they map a private identifier
space (IM name or "handle") into IP addresses and apparently run background
heartbeat to re-assign the mapping if the identifier in the heartbeat arrives
in a packet with a different IP address than before - not sure whether or how
hijack is avoided. Could one use the NAPTR concept to create a new identifier
space with specific dynamics? It would take two lookups: one to DNS to get the
NAPTR and one to resolve the NAPTR identifier into an IP address. The latter
resolution need not necessarily be done via DNS.
vint
Vint Cerf
SVP Technology Strategy
MCI
22001 Loudoun County Parkway, F2-4115
Ashburn, VA 20147
703 886 1690 (v806 1690)
703 886 0047 fax
vinton(_dot_)g(_dot_)cerf(_at_)mci(_dot_)com
www.mci.com/cerfsup