AWS::EC2::SubnetCidrBlock
Associates a CIDR block with your subnet. You can associate a single IPv6 CIDR block with your subnet. An IPv6 CIDR block must have a prefix length of /64.
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
JSON
{ "Type" : "AWS::EC2::SubnetCidrBlock", "Properties" : { "Ipv6CidrBlock" :
String
, "SubnetId" :String
} }
YAML
Type: AWS::EC2::SubnetCidrBlock Properties: Ipv6CidrBlock:
String
SubnetId:String
Properties
Ipv6CidrBlock
-
The IPv6 network range for the subnet, in CIDR notation. The subnet size must use a /64 prefix length.
This parameter is required for an IPv6 only subnet.
Required: Yes
Type: String
Update requires: Replacement
SubnetId
-
The ID of the subnet.
Required: Yes
Type: String
Update requires: Replacement
Return values
Ref
When you pass the logical ID of this resource to the intrinsic Ref
function, Ref
returns the association ID for the subnet’s IPv6 CIDR block.
For more information about using the Ref
function, see Ref.