Jira Server: IP addresses from which the request is sent
If you have multi-level protection and use the Jira Server to Google Sheets integration, you'll need to whitelist the IP addresses from which the requests are sent.
We use Google Cloud Services for importers' automatization. Google Cloud publishes a JSON-formatted list of customer-usable global and regional external IP address ranges. Please find the ranges in this link.
For more on the IP ranges, refer to the Google Cloud documentation.