dhcpinform or dhcprequest

sthaug at nethelp.no sthaug at nethelp.no
Wed Sep 2 12:45:05 UTC 2009

> >offer, sends a request and finally gets an acknowledge from the DHCP server.
> >And, at least with my configuration, the DHCP server is sending an 
> >update to the DNS with the name and IP of the client.
> >
> >So far no problem.
> >
> >But the first lease the client is getting from the DHCP server has 
> >only a short leasetime and the client is requiered to renew the 
> >lease.
> The initial lease does not have to be short, and that is not the 
> default setup for the ISC server.

It is if you're running ISC DHCP servers in a failover pair. And as
you say - the client is expected to renew (in which case it'll get the
normal lease time) with a REQUEST, not INFORM.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no

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