APC Battery Management System - Manual (Page 110)

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USER’S GUIDE
Battery Management System
103
If a DHCP server responds with an invalid offer (for example,
the offer does not contain the APC Cookie), the Management
Card accepts the lease from that server on the last request of
the sequence and then immediately releases that lease. This
prevents the DHCP server from reserving the IP Address
associated with its invalid offer.
For more information on what a valid response requires, see
DHCP response options .