Table 4 details the differences between messages from clients in various states.
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| |INIT-REBOOT |SELECTING |RENEWING |REBINDING |
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|broad/unicast |broadcast |broadcast |unicast |broadcast |
|server-ip |MUST NOT |MUST |MUST NOT |MUST NOT |
|requested-ip |MUST |MUST |MUST NOT |MUST NOT |
|ciaddr |zero |zero |IP address |IP address|
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Table 4: Client messages from different states