Routing network traffic between two EC2 instances in the same subnet to a firewall appliance in another VPC

0

Hi Team,

I have an application VPC with two private Subnets in the same Availability Zone. Subnet A contains multiple EC2 instances. Subnet B is a transit gateway subnet that connects to a firewall VPC that contains a firewall appliance to analyze and control network traffic. In this example the firewall VPC will be a hub and spoke model. To enhance security I would like all traffic that goes between EC2 instances inside Subnet A to be routed to the firewall VPC for inspection. The firewall appliance would need to remain inside the firewall VPC. Is this type of configuration possible?

已提问 2 年前2300 查看次数
2 回答
1
已接受的回答

No, this is not possible. You can insert inspection appliances between subnets, but not within the same subnet. More details here: https://aws.amazon.com/blogs/aws/inspect-subnet-to-subnet-traffic-with-amazon-vpc-more-specific-routing/

Can you create different subnets for different kind of workloads?

Also, you may want to consider a multi-AZ deployment for resiliency. Especially if this is for production workloads.

AWS
AC
已回答 2 年前
profile pictureAWS
专家
已审核 2 年前
0

Good evening,

Could this be a possible solution for you?

Traffic Mirroring is an Amazon VPC feature that you can use to copy network traffic from an elastic network interface of Amazon EC2 instances. You can then send the traffic to out-of-band security and monitoring appliances for:

Content inspection Threat monitoring Troubleshooting

The security and monitoring appliances can be deployed as individual instances, or as a fleet of instances behind a Network Load Balancer with a UDP listener. Traffic Mirroring supports filters and packet truncation, so that you only extract the traffic of interest to monitor by using monitoring tools of your choice. https://docs.aws.amazon.com/vpc/latest/mirroring/what-is-traffic-mirroring.html https://aws.amazon.com/blogs/aws/new-vpc-traffic-mirroring/

已回答 2 年前

您未登录。 登录 发布回答。

一个好的回答可以清楚地解答问题和提供建设性反馈,并能促进提问者的职业发展。

回答问题的准则