Azure Site to Site VPN - BGP

Hi @Minato Sensei ,

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to know where to configure your custom BGP routes.

Azure can only advertise the VNet address range (along with peered Vnets) via BGP.

However,

• A Policy-based Gateway can support this.
• Or a Route-based VPN gateway without BGP and "Use policy based traffic selector" enabled, gives you the flexibility to add your custom routes. (this makes the connection similiar to a Policy-based gateway)

Refer :

• https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-vpn-faq#can-i-specify-my-own-policy-based-traffic-selectors
• https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-connect-multiple-policybased-rm-ps#azure-support-for-policy-based-vpn
• 

Feel free to let us know should you have any additional questions on this, I shall be glad to continue our discussion.

Thanks,
Kapil

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