Wildly excessive DHCPREQUESTs
fs at WPI.EDU
Wed Feb 20 02:56:20 UTC 2008
John Hascall wrote:
> We have a number of machines here which are making a stupidly
> high number of DHCPREQUESTS (and DISCOVERS in some cases).
> For example, we have a few dozen machines making in excess of
> 1000 REQUESTs per day. The worst seems to be an XP box making
> 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)?
We've seen a number of versions of dhcpcd blast out requests like that, but XP
boxes have typically been well behaved. You may want to check for a rogue
DHCP server on those subnets handing out conflicting information and confusing
the XP clients.
Frank Sweetser fs at wpi.edu | For every problem, there is a solution that
WPI Senior Network Engineer | is simple, elegant, and wrong. - HL Mencken
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