Hi,

I have a question regarding BIRD. Is it possible to set the BGP aggregator attribute for a prefix using filters?

This would be useful in our anycast setup, where it can be difficult to determine the origin of a prefix. Using communities is unfortunately not a viable option for us — some of our hardware does not support extended communities, and upstream networks often filter them.

To clarify, I am not looking for route aggregation itself, but specifically a way to set the aggregator attribute.

Thank you for any insights.

Best regards,
Pavel Trefny