Creating VPC Peering over IPv6 CIDR Block
Question
The development team has recently developed a new application that will be using the IPv6 address.
This application will be deployed on an EC2 instance within a Test VPC.
The application needs to have communication with database servers deployed in your Production VPC in the same region.
As a SysOps administrator, you are planning to create a peering between these two VPC.
Which of the following is True while creating a VPC peering over the IPv6 CIDR block?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answer: D.
While establishing VPC peering over the IPv6 CIDR block, there should be no overlapping IPv4 CIDR block.
Inter-Region VPC Peering allows VPC resources like Amazon EC2 instances, Amazon RDS databases, and AWS Lambda functions running in different AWS Regions to communicate with each other using private IP addresses, without requiring gateways, VPN connections, or separate physical hardware.
Option A is incorrect as VP peering over IPv6 CIDR block is supported for inter and intra-region with non-overlapping IPv4 CIDR block.
Option B is incorrect as VPC peering on IPv4 is not required for IPv6 VPC peering.
A stand-alone VPC peering can be configured.
Option C is incorrect as VPC peering is supported for IPv6.
Invalid Configurations.
Overlapping CIDR blocks.
Transitive peering.
Edge to edge routing through a gateway or private connection.
For more information on VPC peering for IPv6 CIDR blocks, refer to the following URL-
https://docs.aws.amazon.com/vpc/latest/peering/invalid-peering-configurations.html https://aws.amazon.com/about-aws/whats-new/2018/02/inter-region-vpc-peering-is-now-available-in-nine-additional-aws-regions/ https://docs.aws.amazon.com/vpc/latest/peering/vpc-peering-basics.htmlWhen creating a VPC peering connection for IPv6 CIDR blocks, the following facts should be taken into consideration:
A. VPC Peering can be established for IPv6 CIDR block with overlapping IPv4 CIDR block. This is a correct statement. A VPC peering connection can be created between two VPCs if they have non-overlapping IPv4 CIDR blocks and either or both of them have an IPv6 CIDR block associated with them. The IPv6 CIDR block can overlap with the IPv4 CIDR block of the same VPC or of the other VPC.
B. VPC peering needs to be established for IPv4 CIDR block between these 2 VPC & then peering for IPv6 CIDR block. This is an incorrect statement. A VPC peering connection can be established for either IPv4 or IPv6 or both CIDR blocks at the same time. There is no need to establish a separate VPC peering connection for each IP address family.
C. VPC Peering is not supported for IPv6 CIDR block. This is an incorrect statement. VPC peering connections are supported for IPv6 CIDR blocks.
D. VPC Peering cannot be established for IPv6 CIDR block with overlapping IPv4 CIDR block. This is an incorrect statement. VPC peering connections can be established for IPv6 CIDR blocks with overlapping IPv4 CIDR blocks.
Therefore, the correct answer is (A) "VPC Peering can be established for IPv6 CIDR block with overlapping IPv4 CIDR block."
