Ok, who broke interface autoconfiguration?

[Chuck Swiger]

Andrew Gallatin wrote:
[ ... ]
> I think the key might be the dhcp server message:  "  unknown lease 0.0.0.0."

If memory serves, the ISC DHCP software can become petulant and confused by 
its own leases file if/when internal structures change in size.  Perhaps try 
"rm /var/db/dhc*.leases" and see whether that fixes things.

-- 
-Chuck