On Wed, 17 Mar 2021 15:59:01 +0800 William Kenworthy <bi...@iinet.net.au> wrote:
> I have been moving away from fixed IP's using scripts to > update via dynamic DNS (which is why two IP numbers per MAC are > problematic). Joost was probably not suggesting the use of static IPs here, he was suggesting to fix a certain MAC to a certain IP employing dhcp (or I didn't understand properly what you both are talking about here ;-). > Interestingly, dhcp issues the same IP addresses consistently to both > the boot process and OS. While stopping the OS requesting an address > is easy enough ... the question is why is that necessary. Google > shows a number of recommendations and howtos saying to do just that > but it seems a "kludge". Did you make sure that the two IPs are issued to the same MAC? I don't have much experience with the ISC server, but I'd think this should not happen. Just a wild guess: does the client update its time (by running ntpclient or similar) during boot so it might think different about the age of its dhcp lease than the server? cu Gerrit
