When discovering resources in an Amazon Web Services (AWS) environment for Address Manager, Cloud Discovery & Visibility (CDV) imports AWS Subnet information from AWS Virtual Private Cloud (VPC) networks. Subnets are imported as IPv4 and IPv6 networks under their respective blocks.
Note: BlueCat Address Manager does not allow creation of subnets larger than /64. As such,
when found, CDV will now mark those subnets as DROPPED in its database and the Discovery
job marked as COMPLETED WITH ISSUES. All IPs related to the dropped subnetes will be
removed from devices and added to the report for the dropped network.
The following example illustrates two sample IPv4 networks that CDV created in Address Manager from a VPC network.