Wildly excessive DHCPREQUESTs

David W. Hankins David_Hankins at isc.org
Tue Feb 19 22:36:45 UTC 2008

On Tue, Feb 19, 2008 at 04:12:44PM -0600, John Hascall wrote:
> about 11,000/day.  Does anyone have any idea what might make a
> box do a DHCPREQUEST/ACK cycle about every five seconds all day,
> day after day (despite getting a 4 day lease)?

I've seen something similar with...of all things...Nintendo Wii's.
When they're suspended but have 'connect24' enabled, they seem to
reconfirm network attachment with a DHCPREQUEST inbetween brief sleep
cycles (7-20 minutes).

My intuition would be to see if the client is having its interface
state cycled rapidly like that; many clients will attempt a request
to confirm they haven't changed networks.

Ash bugud-gul durbatuluk agh burzum-ishi krimpatul.
Why settle for the lesser evil?	 https://secure.isc.org/store/t-shirt/
David W. Hankins	"If you don't do it right the first time,
Software Engineer		     you'll just have to do it again."
Internet Systems Consortium, Inc.		-- Jack T. Hankins

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