christian_lemm asked a question.
Get amazon ec2 elastic ip only when available
Hi, currently I'm trying some workflows with amazon aws / ec2 cloud.I have a simple ec2 instance that provides a public ip. But this is *not* an elastic ip, that will be the same when shutting down and starting a new ec2 instance.I managed to run FNP LicensingService on that instance. Then I tried to retrieve a specific elastic ip host id:% lmutil lmhostid -ptype AMZN -eiplmutil - Copyright (c) 1989-2022 Flexera. All Rights Reserved.The FlexNet host ID of this machine is "AMZN_EIP=1.234.56.78"(I changed the ip in the example above.) But, it printed the current public ip, which is not the desired behaviour for me.My question: Oftentimes the customers have a hard time to understand all these aws configuration options and they might not really understand the difference between a temporary public ip and an elastic ip. Is there some technical support to detect, whether the instance *really* has an elastic ip?
Hi @christian_lemm It's difficult to differentiate the public IP or it's an elastic IP unless you have Tag an Elastic IP address (Read https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html under Tag an Elastic IP address ).
Best Regards,
thanks for the answer, but I don't understand in how tagging an elastic
ip will help me (the software vendor) in order to check, whether the
customer has sent me a valid elastic-ip host id.Hi @christian_lemm , Yes, customers can confirm this because they can view these details on their console for example
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Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/ .
In the navigation pane, choose Elastic IPs.
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So if we really want to know then need confirmation from the customer that it's a public IPv4 address or valid elastic-IP because elastic-ip is costly compared to public IP.
Best Regards,