DHCP Lease Renewals
bmcdonaldjr at gmail.com
Fri Jul 15 10:31:31 UTC 2016
I understand the process of DHCP lease renewal. (Attempt to contact issuing
DHCP server for lease renewal by client after expiration of T1, Attempt to
contact ANY DHCP server for lease renewal by client after expiration of T2,
However, what happens if the client leaves the network before T1 and then
returns before lease expiration? Does the client renew the existing lease?
What's the sequence? (Probably clear to most, just not to me...)
I'm pondering a lease time of 20 hours. For subnets where the population of
devices isn't guaranteed to be fairly static (e.g. laptops connecting via
wires to networks) that is. This would allow a "normal" work shift to
expire before the T1 of 10 hours and expire the lease before the next shift
For totally mobile devices (i.e. wireless devices) shorter lease times. For
more static populations (e.g. IPT devices) longer.
Does MCLT play into this at all? (MCLT is usually 3600 seconds, I think)
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