BGP Filtering

Question

Hi Is there a way to filter incoming BGP routes from the on-prem to Azure? I believe it can be done using route tables but wanted to see if anyone has any advice. Thanks

Answer 1

@Damen Barker
Thank you for getting back.

Thanks for getting back to me but are you saying the only way to achieve this is on the on-prem routers?

Yes, currently the only way to achieve this is via on-prem routers. You will have to apply BGP route filter on the on-prem routers.

Just linking the FAQ here again

If it helps in your scenario or just to provide additional details. As documented here ER route propagation can be disabled on a subnet using a property on a route table. When you disable route propagation, the system doesn't add routes to the route table of all subnets with Virtual network gateway route propagation disabled. This process applies to both static routes and BGP routes.

---

I hope this has been helpful! Your feedback is important so please take a moment to accept answers. If you still have questions, please let us know what is needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!