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Detached Nic -> Public Static IP lost

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Hi,

We have noticed during some testing that if we have a Nic that is not attached to a VM the public IP address that is associated to (set to static) eventually gets removed/cleared. Can you confirm if this is an expected behavour and if so what is the timeframe associated with it being removed/cleared? Does this also occur if the public IP address is dissociated for a period of time?

Which method is preferred during a backup/restore:

1. Swap the NICs between VM's (by detaching/attaching which keeps both the local and public configuration)

OR

2. Dissociate/associate the public IP address and change the local IP (which is set to static on the original VM) to suit.


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