Patent ID: 7281037
Filing Date: 2007-10-09
Classification: H04L

Abstract:
1. A method of operating a provisioning server having a plurality of leases for a plurality of networks, wherein each lease is in either a free state, an active state, an expired state, or an inactive state, the method comprising: transitioning a lease of the plurality of leases which is for a first network of the plurality of networks and which is in the free state to the active state and associating the lease with a client in response to receiving a lease discover message from the client while the client is connected to the first network; transitioning the lease from the active state to the inactive state in response to receiving a lease discover message from the client while the client is connected to a second network of the plurality of networks and is disconnected from the first network; transitioning the lease from the inactive state to the active state in response to receiving a lease discover message from the client while the client is reconnected to the first network after having been disconnected from the first network and is disconnected from the second network; transitioning the lease from the active state to the free state and disassociating the lease from the client in response to receiving a lease release message from the client while the client is connected to the first network and is disconnected from the second network; and transitioning the lease from the active state to the expired state in response to the client failing to renew the lease while the lease is in the active state.