added link

Author: marciocloudflare

src/content/partials/networking-services/routing/configure-routes.mdx

@@ -244,6 +244,8 @@ Example:
 
 ## Configure BGP routes
 
+BGP peering is available when using a [Direct CNI](/network-interconnect/express-cni/) as an on-ramp.
+
 ### Choose an ASN for BGP peering
 
 The Magic routing table is managed by the customer, who can select both the Cloudflare-side ASN and the ASN for their customer device. The customer device ASN can be 2-byte or 4-byte. <Markdown text={props.publicAsnMT} />