Challenge
When you perform failover for a Win2008R2 server with a VMXNET 3 Adapter, configured Re-IP settings are not applied to the target replica. Instead, the replica acquires another IP address.
Cause
This is a known issue with the VMXNET 3 Adapter. When Veeam Backup & Replication creates a VM replica, the replica’s PCI Express virtual network acquires a MAC address that differs from the MAC address of the source VM. This MAC address is ultimately added as a new device, so Re-IP does not function properly.
Solution
Information regarding solutions and workarounds are discussed in the following VMware article.
Deploying Windows 2008 R2 and Windows 7 templates with vmxnet3 renames the NIC as #2 (1020078)
After following the instructions in the above VMware KB article to either resolve or workaround the issue, the following steps should be performed to update the replica.
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Delete the current VM replica.
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Verify Re-IP settings in the properties of a replication job.
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Re-run the replication job.
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When a new replica is created, test failover to make sure that Re-IP settings are applied properly.