
A [DHCP](/dhcp) renewal occurs when a DHCP lease expires. The DHCP host will contact the original leasing DHCP server and request a new lease. A renewal **simply renews the lease time**. The actual IP address and the [MAC](/switching-media-access-control-mac-addresses) address in the server entry, and any DHCP options used all remain the same.

A rebinding is when a host will remove all network information it may have previously obtained from a DHCP server and will begin from scratch.  It sends out a broadcast asking for a DHCP server to respond and binds to the server that responds successfully.

When a host attempts to perform a DHCP renew and it fails for some reason, it will then attempt a rebind.


DHCP renewal rebinding

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DMVPN Dual Cloud Path Selection Using IGP Metrics

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DMVPN with more than two hubs

DMVPN

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DTP - how to disable

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