Microsoft Azure Update
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Update Summary
Summarized advertised gateway prefixes for route advertisement is generally available for Azure ExpressRoute Gateway and VPN Gateway. It lets you advertise aggregated IPv4 and IPv6 prefixes to on-premises networks while preserving any spoke prefixes outside the summary.
Update Details
New Features
- Support for advertising summarized gateway prefixes instead of every individual virtual network address space.
- Applies to both ExpressRoute Gateway and VPN Gateway, including IPv4 and IPv6 address spaces.
Hints
- Useful for large hub-and-spoke deployments that are approaching advertised-prefix limits.
- Spoke address spaces outside the summarized prefix continue to be advertised individually, preserving existing connectivity.
Product Information
Vendor: Microsoft
Product: Azure
Product type: Other
Platform: Web
Vendor release date: Aug 1, 2026
Original release notes: View on vendor site
Published on updatealert.io: Aug 23, 2026