Just need to know your expert opinion on this.
I have 2 provider independent prefixes advertised to our current 3 ISPs (ISP-A, ISP-B, ISP-C) via BGP. And I have another separate ISP (ISP-D) with its own IP prefix (ISP owned prefix) running default route only to ISP network (currently not member of BGP).
I plan to join ISP-D to existing BGP, advertising my 2 provider independent prefix plus the ISP owned prefix of ISP-D to this link. However I only want to advertise the ISP owned prefix to ISP-D and not to my other ISP. Meaning this prefix can only be reachable on the internet through ISP-D, inbound and outbound.
I am currently reading on Prefix List Policy Control and I just want to know if I am on the right track. Any ideas how it can be implemented? I will be testing this on lab.
My AS: AS 100
Remote As: AS 200
Provider independent Prefixes:
ISP-D prefix (ISP owned):
Appreaciate your ideas.