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I have create a VWAN , so it's having default BGP AS number . How to change this

Navaneetharaj Mohanraj-a 0 Reputation points
2025-12-12T03:03:29.4366667+00:00

I have crated a VWAN and created an IPSEC tunnel on it. But the VWAN gateway is having a default BGP AS number of 65515 , I wanted to change it to a different AS number. Is it possible to change the AS number or I have to create a separate virtual gateway.

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  1. Q&A Assist
    2025-12-12T03:03:39.5+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    In Azure Virtual WAN, the default BGP ASN is set to 65515, and it cannot be changed. If you want to use a different ASN, you will need to create a separate virtual network gateway. The existing Virtual WAN does not support changing the ASN for the Virtual Hubs or any gateways after they have been created.

    References:

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  2. Venkatesan S 1,090 Reputation points Microsoft External Staff Moderator
    2025-12-12T05:27:08.4933333+00:00

    Hi Navaneetharaj Mohanraj-a,

    Thanks for Posting question in Microsoft Q&A forum,

    I see you're trying to change the default BGP AS number for your Virtual WAN (VWAN).

    Currently, in Azure, you cannot change the BGP AS number of a Virtual WAN after it has been created. The default number 65515 is assigned to a new VWAN and is not modifiable. If you need a different AS number, you will need to create a separate virtual hub or gateway specifically configured with your desired AS number from the beginning.

    Here’s what you can do:

    1. Create a new Virtual Hub or Gateway with the desired BGP AS number.
    2. Migrate your configuration over to the new hub if necessary.

    I hope this clears things up! If you have any more questions, feel free to ask!

    Reference:

    Let me know if you need further assistance!

    Please do not forget to 210246-screenshot-2021-12-10-121802.pngand “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

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