AWS Error The address with allocation id allocation id cannot be released because it is locked to your account

Question

I am trying to release an elastic IP from my EC2 instance and I end up with the following error:

The address with allocation id [allocation id] cannot be released because it is locked to your account

Please help me!

Answer 1

Hey @Hannah, you get this error when your elastic IP has created an rDNS(reverse DNS). Execute the following command to find out if an rDNS exists:

#host 203.0.113.0

if it exists then you'll be shown something like this:

203.0.113.0.in-addr.arpa. domain-name-pointer mail.domain.com

Now you need to remove that to get rid of the error. Fill the Request to Remove Email Sending Limitations form. Now try releasing the elastic IP.

Answer 2

It may be an issue with the routing table. Remove the IP in the route table

Answer 3

Do you see any associations for the EIP under network interfaces? If so disassociate