Server Fault Stack Exchange
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Questions tagged [vpc-peering]

A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses.

See this link: https://docs.aws.amazon.com/vpc/latest/peering/what-is-vpc-peering.html

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Shared VPC and VPC Peering mix

On Google cloud, I have setup new three projects - dev, research and prod. So, then created an Shared VPC Host and three Service Projects as listed above. Also intend to have separate VPCs for each of these service projects (to add more security…
Rag K
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Not able to access RDS instance inside EKS cluster | EKS <-> RDS connection

I'm trying to access my existing RDS instance in the newly created EKS cluster. steps I have followed: Create a VPC peering connection by keeping RDS as requester and EKS as accepter. Add destination Accepter CIDRs with the peering connection. in…
Saikat Chakrabortty
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Connection though VPC peering from VM to Kubernetes Service

I have 2 VPCs in GPC, the first one (VPC-1) running k8s cluster and the second running some VMs (VPC-2). I created a VPC peering between these 2 VPCs and I am able to connect from VM on VPC-2 to pod IP on VPC-1. But I would like to connect to the…
DevOpsTech
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ALB can't forward to NLB over VPC Peering Connection

I have an internet-facing ALB in VPC1 and an internal NLB in VPC2 The NLB is pointed at an ECS service and health-checks are healthy The ECS Task Security Group allows traffic from VPC1 CIDR as well The ALB has an IP target group with the NLB's…
codeself
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Google Cloud VPC network peering - DNS not shared?

I've got two VPC Networks: A B They are linked with eachother trough VPC network peering. Machines from network A can reach machines from network B just fine via IP. However, they are not capable of accessing eachother trough their internal dns…
ThomasVdBerge
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AWS VPC Peered - RDS accessing Active Directory Service

I have two aws accounts and I could establish a peering of two VPCs belonging to each account. Also, I was able to launch an EC2 instance one account joining to the AD domain on the other account. The problem is I can't find a way to do the same for…
Felix Cen
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Solving the mystery - VPCs have overlapping IPv4 CIDR blocks

In AWS, When I try to create a peering connection I get this following error Failed due to incorrect VPC-ID, Account ID, or overlapping CIDR range I am not savvy with the networking and wonder how I can solve this ?
user4826347
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cannot ping ec2 in another vpc through peer connection

I have multiple VPC's set up, A, B and X. I have a peered connection between A & X and between B & X, X is the Peered VPC in both cases. I have added the CIDR Blocks for A & B to the route table & security group for x and I have added X's to A &…
jonnie
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VPC peering: Accessing a resource in public subnet from a public subnet through peering connection issues

I have set vpc peering between these VPCs (vpc-1 and vpc-2). I have my RDS in vpc-1 in this subnets (10.13.1.0, 10.13.2.0, 10.13.3.0) with this route rtb-vpc1-rds. In the second VPC and two subnets : one public (10.12.1.0 with route…
LotfiK
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AWS Active Directory: Cannot access from another VPC

I've setup an Active Directory service in AWS in 2 private subnets in a VPC. I have another VPC in the same account that I want to be able to access the AD from. However for some reason it just isn't accessible from anywhere outside it's own…
user1751825
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Cross region VPC/VPN not routing to peered VPC

I've setup IPSEC tunnels between 3 management VPCs in 3 distinct AWS regions. Each of those regions has additional VPCs (dev/prod) that are peered to the management VPCs. It's setup in a hub/spoke like this: DEV DEV ^ …
Publiccert
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AWS VPC Peering security concern

I got started with AWS recently. I came across an use case which I believe is pretty common but I was curious to understand how it will be implemented on AWS. We are collaborating with another organization who wants to have the database server in…
Krishna Bharadwaj
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AWS VPN - Fault Tolerant Cross-Region and VPC CIDR block

I have some complicated question: I have connected multiple VPCs with EC2 Instances (IPSec) for routing traffic between VPC's across regions, I have VPN connection to each aws region, and everything is working fine. Traffic from my office to…
Berlin
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Restricting traffic between AWS VPCs

I have two VPCs: A and B. I want any node in A to be able to open a TCP connection to any node in B, but not the other way around. Any node in B must also be able to open outgoing connections to public internet hosts. What is the best way to achieve…
Ralf
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AWS VPC CIDRs in both 10.0.0.0/8 and 192.168.0.0/16

I have VPC A with CIDR 10.A.0.0/16 and VPC B with CIDR 10.B.0.0/16. I have VPC A and B peered and updated the route tables and from a server in 10.B.0.0/16 can ping a server in 10.A.0.0/16 and vice versa. The applications on VPC A also use some IPs…
Gangstead
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