On Thu, Sep 4, 2008 at 4:04 PM, Atkins, Dwane P <[EMAIL PROTECTED]> wrote: > Does anyone have a recommendation for the DHCP default lease time? We > have a Captive Portal Idle Timeout of 30 minutes and a Hard timeout of > 720 minutes. Our DHCP lease is 43300 seconds or a little more than 12 > hours. > > We do want our students to log in a bunch of times, but we do not want > them to keep an IP address for hours after they stop using it. > > We have been told to change make the default lease time more than our > captive portal session. What would happen if we change the default > lease time on the DHCP server to 7200 second and left the rest? How > would this affect the users? >
Your lease will need to be a little longer than your hard timeout. Otherwise if the lease expired and someone else were to get it and the previous user didn't log out, the new user won't have to authenticate until the hard timeout. There isn't any way to release a DHCP lease when a user logs out. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
