public String getClientCidrBlock() {
        return this.clientCidrBlock;
    }
<p>
The IPv4 address range, in CIDR notation, from which to assign client IP addresses. The address range cannot
overlap with the local CIDR of the VPC in which the associated subnet is located, or the routes that you add
manually. The address range cannot be changed after the Client VPN endpoint has been created. Client CIDR range
must have a size of at least /22 and must not be greater than /12.
</p>

@return The IPv4 address range, in CIDR notation, from which to assign client IP addresses. The address range
        cannot overlap with the local CIDR of the VPC in which the associated subnet is located, or the routes
        that you add manually. The address range cannot be changed after the Client VPN endpoint has been
        created. Client CIDR range must have a size of at least /22 and must not be greater than /12.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/CreateClientVpnEndpointRequest.java