Flag of undo operation for
hwDHCPSGlobalPoolConfigTable
Each value has the following meaning:
undonetworkip(1): The value identifies the flag to delete a configured network ip
undohostip(2): The value identifies the flag to delete a configured host ip
undohosthaddr(3):The value identifies the flag to delete a configured hardware address
invalid(4):The value is a default value,do nothing