DHCP INFORM

[Carlos Cantu/Boulder/IBM]

The best argument I've found for the use of the Inform request is when a
machine has been manually configured, it can still pick up other usefull
information that may be configured in DHCP.  Should a DHCP client be doing
Informs if it picked up its IP address through DHCP?  It seems to me it
would already have all the info it needs and thus the Informs would be
wasteful.  Should client logic look something  like this:

if (ReceivedIPAddressLastFrom != DHCP)
     Do DHCPInform calls here...

...otherwise don't do DHCP Informs.

Or is there some good reason for doing Informs even if you got a DHCP
address?