Are internal IP's static?

Question

OK, this question may be on the dumb side ... but are internal IP's static for instances?  
  
If I have an instance with internal IP 172.1.1.1 (made up) and I shut the instance down, will I have the same 172.1.1.1 IP when it comes back up?  
  
In the network config script for eth0 I see it's assigned the IP with DHCP, but how persistent is that IP?  
  
Thanks!  
  
david

Answer

The private IP address should persist if the instance is shutdown and start up again. Lightsail also supports static IP address. I have the link below for your reference.  
  
https://lightsail.aws.amazon.com/ls/docs/en/articles/understanding-public-ip-and-private-ip-addresses-in-amazon-lightsail

Are internal IP's static?

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