DHCP and Dynamic DNS

[Chris Cox]

On Fri, 2008-05-09 at 07:36 +0100, Simon Hobson wrote:
> Chris Cox wrote:
> 
> >I was going to recommend a shorter lease time as a potential
> >"somewhat" fix.  Would that help?
> 
> Yes it would, in that clients will have to renew their lease earlier 
> - and hence give the DHCP server another chance to do the DNS update. 
> On the other hand, shorter lease times come with their own issues, in 
> particular the fact that clients will lose networking capability 
> sooner in the event of a DHCP outage.
> 
> So there isn't a simple answer !

Very true.  We run short leases (30 minutes) here just to keep
things clean.  Allows hosts to float from one network to
another better (e.g. a laptop that goes home and comes back
online via VPN).