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PMC-1994 asked SadiqhAhmed-MSFT commented

Azure Site Recovery - Retain same public IP address

I've set-up ASR for one of my Azure VMs and would like to know if I can retain it's public IP when performing a failover. I know I can manually / automate the creation of a new public IP and attach to the target VM but can I use the same IP from the source VM?

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Hi @PMC-1994 - Thank you for reaching out to us!

It is possible to retain IP address in the target region identical to the source region. Ref doc: https://docs.microsoft.com/en-us/azure/site-recovery/site-recovery-retain-ip-azure-vm-failover


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Hi @SadiqhAhmed-MSFT - Thank you for your reply.

The link you've attached, is this not referencing Private IP addressing? The private IP is replicated within the target region the same as the source, however the Public IP isn't transferred across with it and from what I can see, there's no option but to recreate a new public IP?

Is this correct?

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@PMC-1994 - Yes, the Public IPs are not transferrable. A new region would require a new Public IP. Yes, the mentioned document is for Private IPs.

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learn2skills answered

Hi @PMC-1994

Can be zone-redundant (which is advertised from all three zones), zonal (which is guaranteed in a specific pre-selected availability zone), or "no-zone" (which isn't associated with a specific pre-selected availability zone).
Zone redundant IPs can only be created in regions where three availability zones are live. IPs created before zones are live won't be zone redundant.
Standard SKU public IPs

137131-image.png


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