Virtual machines will be moved from on-premises virtual machines to Azure.
Since on-premises ARP in Azure environment cannot be learned, the following actions are required
Since clouds do not support Address Resolution Protocol (ARP), and the cloud infrastructure is not aware of the hosts in the remote site, you must add a To add a virtual or alias IP, see Add an IP address for an Azure interface.
https://www.cisco.com/c/en/us/td/docs/routers/C8000V/Azure/deploying-cisco-catalyst-8000v-on-microsoft-azure/configure-l2- extension-for-public-cloud.html#:~:text=the%20Enterprise%20System-,Prerequisites%20for%20configuring%20LISP%20Layer%202%20 Extension,-Ensure%20that%20the
When communicating from the virtual machine to the on-premises segment at the time of migration, is the communication via the on-premises Default Gateway?