CDP CIDR

CDP CIDR includes the following IP ranges:

Control Plane Region IP Ranges
us-west-1 35.80.24.128/27, 35.166.86.177/32, 52.36.110.208/32, 52.40.165.49/32
eu-1 3.65.246.128/27
ap-1 3.26.127.64/27

When creating your own security groups for CDP, you must open required ports to all of these IP ranges.