name : associate-vpc-cidr-block.rst **Example 1: To associate an Amazon-provided IPv6 CIDR block with a VPC** The following ``associate-vpc-cidr-block`` example associates an IPv6 CIDR block with the specified VPC.:: aws ec2 associate-vpc-cidr-block \ --amazon-provided-ipv6-cidr-block \ --ipv6-cidr-block-network-border-group us-west-2-lax-1 \ --vpc-id vpc-8EXAMPLE Output:: { "Ipv6CidrBlockAssociation": { "AssociationId": "vpc-cidr-assoc-0838ce7d9dEXAMPLE", "Ipv6CidrBlockState": { "State": "associating" }, "NetworkBorderGroup": "us-west-2-lax-1" }, "VpcId": "vpc-8EXAMPLE" } **Example 2:To associate an additional IPv4 CIDR block with a VPC** The following ``associate-vpc-cidr-block`` example associates the IPv4 CIDR block ``10.2.0.0/16`` with the specified VPC. :: aws ec2 associate-vpc-cidr-block \ --vpc-id vpc-1EXAMPLE \ --cidr-block 10.2.0.0/16 Output:: { "CidrBlockAssociation": { "AssociationId": "vpc-cidr-assoc-2EXAMPLE", "CidrBlock": "10.2.0.0/16", "CidrBlockState": { "State": "associating" } }, "VpcId": "vpc-1EXAMPLE" }