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BGP endpoints in Virtual Hub

Steven J. Williams 25 Reputation points
2023-02-08T17:04:05.19+00:00

I am seeking how to see/understand how azure chooses these random addresses for BGP endpoints in the Virtual Hub?

For instance my Palo Alto VM is peering with 10.51.32.4 and 10.51.32.5.

10.51.0.0/16 is the private ip space for my virtual wan hub, but where are these addresses generated from and how can I find them?

Azure Virtual Network
Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
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  1. ChaitanyaNaykodi-MSFT 27,196 Reputation points Microsoft Employee
    2023-02-09T04:03:59.7166667+00:00

    @Steven J. Williams

    Thank you for reaching out on the Microsoft Q&A forum.

    The IPs are automatically selected from the IP address range that you use for your virtual hub's private address space. You can find these IP addresses by running the Virtual Hubs - Get REST API and they will be listed as virtualRouterIps in the response.

    As documented here peering with both these addresses is required. Not peering with both addresses can cause routing issues. The same routes must be advertised to both of these addresses. Advertising different routes will cause routing issues.

    Hope this helps! Please let me know if you have any additional questions. Thank you!

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