4.1.1 lease duplicate
Wim.Vandersmissen at icts.kuleuven.be
Wed May 19 16:03:59 UTC 2010
> -----Original Message-----
> From: dhcp-users-
> bounces+wim.vandersmissen=icts.kuleuven.be at lists.isc.org [mailto:dhcp-
> users-bounces+wim.vandersmissen=icts.kuleuven.be at lists.isc.org] On
> Behalf Of Roar Pettersen
> Sent: woensdag 19 mei 2010 17:50
> To: Users of ISC DHCP
> Subject: RE: 4.1.1 lease duplicate
> Hi !
> > Run a tcpdump on one of your servers, maybe you got clients where the
> 'secs' field of the DHCPDISCOVER header is greater than 3 (as specified
> by "load balance max seconds 3"). If that's the case, the load-
> balancing is disabled and both servers will offer an IP, which will
> cause a 'is duplicate' message.
> > Maybe same problem as I had (see
> https://lists.isc.org/pipermail/dhcp-users/2010-April/011298.html )
> Yes, I guess that it is the same problem. Have rebuild with your patch,
> but did you also do some config change in dhcpd.conf ?
No, that should solve it, but using "max seconds 3" was a bit low in our environment, we changed it to 6.
> Med vennlig hilsen / Regards;
> Roar Pettersen
> Universitetet i Bergen - The University of Bergen
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