@cjoseph wrote:
mldickson,
Think about it this way:
Two users who never intended on getting on your network will use up an hour of lease time..
I would drop it to 15 minutes and re-measure. I would also push for 802.1x use where you can.
Decreasing the lease time does make devices request a dhcp address more frequently and if you are using drop broadcast and multicast, it amounts to a unicast request, traffic wise...
We are using drop broadcast and multicast.
Our user idle timeout is currently set for 15 minutes. If we drop the DHCP lease time from 30 to 15 minutes should we change this as well? To what value? Would anything need to get changed? I seem to recall that we tried lowering lease times in the past but backed out for some reason.
Are other large-ish deployments using lease times lower than 30 minutes with no issues?
Thanks for the info.