You can configure a router to selectively receive routes.
ripng [ process-id ]
Based on the ACL:
filter-policy acl6-number import
Based on the prefix list:
filter-policy ipv6-prefix ipv6-prefix-name import
Based on the route-policy:
filter-policy route-policy route-policy-name import
RIPng can filter the received routes based on an IPv6 ACL, route-policy or an IPv6 prefix list. Only the routes that meet the match conditions are added in the RIPng routing table.