DHCP client nonstandard behavior

[Jeffrey Hutzelman]

--On Wednesday, January 21, 2009 01:53:48 PM +0100 Christof Chen 
<christof at chen.de> wrote:

> Sending a Renewal originating from a real IP is perfectly valid (and the
> intended behavior).

Of course, if your lease expires, or the DHCPRENEW is refused, then that 
real address is no longer yours to use, and the DHCP server may have given 
it to someone else.  In that case, you need to go back and get a new lease 
from scratch, sending DHCPDISCOVER and DHCPREQUEST packets with a source 
address of 0.0.0.0.  If the library won't let you do that, then sooner or 
later, you're going to have a problem.

-- Jeff