If the camera is configured to get a network IP address from a dynamic host configuration protocol (DHCP) server, the DHCP lease time feature indicates the number of seconds remaining in the camera's current DHCP lease.
Before the lease expires, the camera will renew its lease from the DHCP server as per DHCP specification RFC 2131.
You can use the eSDK API functions to get the node’s current value.
For more information about related features, see Transport Layer Control Features.