4/

In AWS, each EC2 instance can have multiple network interfaces (ENIs)

You can assign a limited number of IPs to each ENI

For example, an m5.large can have up to 10 IPs for ENI

Of those 10 IPs, you have to assign one to the network interface

The rest you can give away pic.twitter.com/idU5gxsosm

— Daniele Polencic — @[email protected] (@danielepolencic) March 20, 2023