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I have the following instances, they are in the same VPC and region but different AZs, both of them are in the same SecurityGroup.

Subnets:

  • us-west-2a instance-a 172.31.32.0/20
  • us-west-2b instance-b 172.31.16.0/20

These two instances are not able to communicate with each other. What do I need to do to enable communication between these two AZs?

Here is the main route: enter image description here

Subnet 1: Subnet 1

Subnet 2: Subnet 2

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1 回答 1

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您必须在 EC2 的 SecurityGroups 中打开所需的端口。您还应该查看您的子网以及这些子网或您的 VPC 的路由表。

于 2017-03-21T14:38:16.867 回答