IMPORTANT: Updated on 2020-02-29 02:28:49

== Availability Zone Configuration

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|===
|Parameter label (name) |Default |Description
|**Availability Zones**(`AvailabilityZones`) |**Requires Input** |List
of Availability Zones to use for the subnets in the VPC. Note: The
logical order is preserved.

|**Number of Availability Zones**(`NumberOfAZs`) |2 |Number of
Availability Zones to use in the VPC. This must match your selections in
the list of Availability Zones parameter.
|===
== Network Configuration

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|===
|Parameter label (name) |Default |Description
|**VPC CIDR**(`VPCCIDR`) |10.0.0.0/16 |CIDR block for the VPC

|**Public subnet 1 CIDR**(`PublicSubnet1CIDR`) |10.0.128.0/20 |CIDR
block for the public DMZ subnet 1 located in Availability Zone 1

|**Public subnet 2 CIDR**(`PublicSubnet2CIDR`) |10.0.144.0/20 |CIDR
block for the public DMZ subnet 2 located in Availability Zone 2

|**Public subnet 3 CIDR**(`PublicSubnet3CIDR`) |10.0.160.0/20 |CIDR
block for the public DMZ subnet 3 located in Availability Zone 3

|**Public subnet 4 CIDR**(`PublicSubnet4CIDR`) |10.0.176.0/20 |CIDR
block for the public DMZ subnet 4 located in Availability Zone 4

|**Tag for Public Subnets**(`PublicSubnetTag1`) |Network=Public |tag to
add to public subnets, in format Key=Value (Optional)

|**Tag for Public Subnets**(`PublicSubnetTag2`) | |tag to add to public
subnets, in format Key=Value (Optional)

|**Tag for Public Subnets**(`PublicSubnetTag3`) | |tag to add to public
subnets, in format Key=Value (Optional)

|**Create private subnets**(`CreatePrivateSubnets`) |true |Set to false
to create only public subnets. If false, the CIDR parameters for ALL
private subnets will be ignored.

|**Private subnet 1A CIDR**(`PrivateSubnet1ACIDR`) |10.0.0.0/19 |CIDR
block for private subnet 1A located in Availability Zone 1

|**Private subnet 2A CIDR**(`PrivateSubnet2ACIDR`) |10.0.32.0/19 |CIDR
block for private subnet 2A located in Availability Zone 2

|**Private subnet 3A CIDR**(`PrivateSubnet3ACIDR`) |10.0.64.0/19 |CIDR
block for private subnet 3A located in Availability Zone 3

|**Private subnet 4A CIDR**(`PrivateSubnet4ACIDR`) |10.0.96.0/19 |CIDR
block for private subnet 4A located in Availability Zone 4

|**Tag for Private A Subnets**(`PrivateSubnetATag1`) |Network=Private
|tag to add to private subnets A, in format Key=Value (Optional)

|**Tag for Private A Subnets**(`PrivateSubnetATag2`) | |tag to add to
private subnets A, in format Key=Value (Optional)

|**Tag for Private A Subnets**(`PrivateSubnetATag3`) | |tag to add to
private subnets A, in format Key=Value (Optional)

|**Create additional private subnets with dedicated network
ACLs**(`CreateAdditionalPrivateSubnets`) |false |Set to true to create a
network ACL protected subnet in each Availability Zone. If false, the
CIDR parameters for those subnets will be ignored. If true, it also
requires that the `Create private subnets' parameter is also true to
have any effect.

|**Private subnet 1B with dedicated network ACL
CIDR**(`PrivateSubnet1BCIDR`) |10.0.192.0/21 |CIDR block for private
subnet 1B with dedicated network ACL located in Availability Zone 1

|**Private subnet 2B with dedicated network ACL
CIDR**(`PrivateSubnet2BCIDR`) |10.0.200.0/21 |CIDR block for private
subnet 2B with dedicated network ACL located in Availability Zone 2

|**Private subnet 3B with dedicated network ACL
CIDR**(`PrivateSubnet3BCIDR`) |10.0.208.0/21 |CIDR block for private
subnet 3B with dedicated network ACL located in Availability Zone 3

|**Private subnet 4B with dedicated network ACL
CIDR**(`PrivateSubnet4BCIDR`) |10.0.216.0/21 |CIDR block for private
subnet 4B with dedicated network ACL located in Availability Zone 4

|**Tag for Private B Subnets**(`PrivateSubnetBTag1`) |Network=Private
|tag to add to private subnets B, in format Key=Value (Optional)

|**Tag for Private B Subnets**(`PrivateSubnetBTag2`) | |tag to add to
private subnets B, in format Key=Value (Optional)

|**Tag for Private B Subnets**(`PrivateSubnetBTag3`) | |tag to add to
private subnets B, in format Key=Value (Optional)

|**VPC Tenancy**(`VPCTenancy`) |default |The allowed tenancy of
instances launched into the VPC
|===
== DEPRECATED: NAT Instance Configuration

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|===
|Parameter label (name) |Default |Description
|**DEPRECATED: Key pair name**(`KeyPairName`) |deprecated |DEPRECATED.
NAT gateways are now supported in all regions.

|**DEPRECATED: NAT instance type**(`NATInstanceType`) |deprecated
|DEPRECATED. NAT gateways are now supported in all regions.
|===