How Do I Enable Two Attachments of an Enterprise Router to Learn Routes from Each Other?¶
If you want two attachments of an enterprise router to learn routes from each other, the router and each attachment must have a unique ASN. In this way, the enterprise router advertises the learned route information between the attachments.
If you want two virtual gateways attached to the same enterprise router to learn routes from each other, their ASNs can be as follows:
Enterprise router: 64800
Virtual gateway attachment A: 64513 (BGP ASN of virtual gateway A)
Virtual gateway attachment B: 64515 (BGP ASN of virtual gateway B)
Note
VPC attachments do not support route learning.