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Azure Networking Blog
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ExpressRoute Gateway Migration Playbook

khush08's avatar
khush08
Icon for Microsoft rankMicrosoft
Mar 31, 2025

The document outlines the process of upgrading the ExpressRoute gateway to a zone-redundant SKU and the public IP to a Standard SKU, enhancing reliability, performance, and security. It highlights the importance of following ITSM guidelines, including change management protocols, planning it during a maintenance window and thorough testing.

Objective The objective of this document is to help with transitioning the ExpressRoute gateway from a non-zone-redundant SKU to a zone-redundant SKU. This upgrade enhances the reliability and avai...
Updated Mar 31, 2025
Version 4.0
azure expressroute
azure networking
well-architected
Josueg789's avatar
Josueg789
Copper Contributor
Jun 24, 2025

Hi, after the migration, does the gateway retain the new IP address that was created, or is it replaced with the old one? During the ExpressRoute migration process, a new virtual network gateway is created, and you have the option to select a new public IP address, however, the document does not explicitly state whether the existing IP address will be retained or changed after the migration is completed.