什么是AWS公共IP限制？ （公共IP不是弹性IP）
[英]What is the AWS Public IP Limit? (Public IP not Elastic IP)
问题描述
Is there a limit to the number of Public IPs you can use for a given AWS region? 
您可以为给定AWS区域使用的公共IP数量是否有限制？ (Not Elastic IPs) （不是弹性IP）
Note - I know that you are limited to 5 Elastic IPs. 注意 - 我知道您只能使用5个弹性IP。 However, if you choose "auto assign IP" when creating and AWS instance, you are given an IP which changes on restart. 但是，如果在创建和AWS实例时选择“自动分配IP”，则会为您提供在重新启动时更改的IP。 My question is what the limit is on these "Public IPs" that change every time your instance is stopped and started? 我的问题是，每次停止和启动实例时，这些“公共IP”的限制是什么？
2 个解决方案
解决方案1
4 已采纳 2016-08-24 18:32:04
There is no limit on Public IPs that you can use in AWS. 您可以在AWS中使用的公共IP没有限制。 Limit is only on number of instances that you can launch and that instance limit too can be increased by contacting the AWS Support. 限制仅适用于您可以启动的实例数，并且可以通过联系AWS Support来增加实例限制。
解决方案2
4 2016-08-24 18:42:03
It is limited by the number of instance limit in your account and region. 它受您帐户和区域中实例限制的数量限制。 By default you have a limit of 20 instances/region. 默认情况下，您有20个实例/区域的限制。 You can choose to launch all instances in public subnet with auto-assign-public-ip and use 20 public IPs. 您可以选择使用auto-assign-public-ip在公有子网中启动所有实例，并使用20个公共IP。
For example, you requested an instance limit increase of 200 with justification and if it was approved, you can use up to 200 public IPs / region. 例如，您通过理由请求实例限制增加200，如果获得批准，则最多可以使用200个公共IP /区域。
To view your limit: Viewing Your Current Limits 查看限制： 查看当前限制
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