IP based routing policy is fairly straight forward you define a set of IPs in a CIDR block and IPs in that range go to a specified endpoint. An example of a use case would be a certain ISP placing a group of users in a CIDR group and you could use IP-based routing to redirect all clients with an IP in that block to a specific endpoint. Next up we have multi-value routing policy. This is useful if you have multiple resources you need to route to. A multi-value routing policy does allow health checks. This routing policy returns up to 8 healthy record for each multi-value query. Traffic is distributed across all endpoints defined, not an ELB, and if any are unhealthy they are removed from the list. For example you could have multiple values assigned to example.website.com and users would be distributed across those, if one record failed it would be removed from the list and users wouldn’t be routed to it.