public AwsEc2SecurityGroupIpv6Range withCidrIpv6(String cidrIpv6) {
        setCidrIpv6(cidrIpv6);
        return this;
    }
<p>
The IPv6 CIDR range. You can specify either a CIDR range or a source security group, but not both. To specify a
single IPv6 address, use the /128 prefix length.
</p>

@param cidrIpv6
       The IPv6 CIDR range. You can specify either a CIDR range or a source security group, but not both. To
       specify a single IPv6 address, use the /128 prefix length.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsEc2SecurityGroupIpv6Range.java