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n |
The
server must choose an expiration time for the lease, as follows:
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IF
the client has not requested a specific lease in the DHCPDISCOVER
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message
and the client already has an assigned network address, the server
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returns
the lease expiration time previously assigned to that address (note that
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the
client must explicitly request a specific lease to extend the expiration
time
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on a
previously assigned address), ELSE
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IF
the client has not requested a specific lease in the DHCPDISCOVER
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message
and the client does not have an assigned network address, the server
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assigns
a locally configured default lease time, ELSE
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IF
the client has requested a specific lease in the DHCPDISCOVER message
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(regardless
of whether the client has an assigned network address), the server
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may
choose either to return the requested lease (if the lease is acceptable to
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local
policy) or select another lease.
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