Virtual hub is not enabled to allow Router ASN modification. Please set ASN to 65515 or contact Support for enabling virtual hub to allow modification

Robert Smit 26 Reputation points MVP
2025-05-07T17:45:32.2366667+00:00

Hi,

Testing with with NVA’s and azure virtual wan and want to set each hub with it’s on asn other than the default 65515.

It seems it is possible but also that support is the only one that can do this ?

 {

  "code": "CustomAsnNotEnabledForVirtualHub",

  "message": "Virtual hub is not enabled to allow Router ASN modification. Please set ASN to 65515 or contact Support for enabling virtual hub to allow modification.",

  "details": []

 

hope support can help me with this

Azure Virtual WAN
Azure Virtual WAN

An Azure virtual networking service that provides optimized and automated branch-to-branch connectivity.

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Answer accepted by question author

Praveen Bandaru 11,720 Reputation points Microsoft External Staff Moderator
2025-05-07T19:11:17.28+00:00

Hello Robert Smit

Thank you for reaching out.

I understand that you are trying to modify the Autonomous System Number (ASN) for your Azure Virtual WAN's virtual hub.

I just confirmed with the team and currently modifying ASN is not supported. This cannot be modified in backend as well.

This is currently documented here.

I understand the error message above is miss leading and we have requested the product team to rectifying the error message above. Please let me know if you have any questions.

We encourage you to share your feedback on the Azure feedback link provided below. This will alert our internal team, who will then reach out to you to assist further and provide a better understanding of the situation https://feedback.azure.com/d365community

Hope the above answer helps! Please let us know do you have any further queries

Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

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