How do I add a new IP address?

ICPSR uses IP ranges as one way to validate data users logging in from ICPSR member institutions.

ICPSR Representative(s) may request an update to your IP range(s) and IP address(es) on file at ICPSR by contacting icpsr-help@umich.edu. If necessary, others may request an IP update by contacting icpsr-help@umich.edu and including the local ICPSR Representative(s) in CC. You may find your ICPSR Representative(s) listed here: List of Member Institutions. Please note that ICPSR will need to confirm approval from Representatives before processing any changes.

ICPSR Representatives may review current IP information here: Managing Your Institution’s Membership: Tools for ICPSR Representatives

About IP addresses

An individual IP address looks something like this: 141.211.81.142

We will also accept CIDR format, which looks like this: 141.211.81.142/32

The last digits signify the individual computer, while the first 2-3 parts of the number signify the institution. Many institutions have multiple IP ranges. When in doubt, contact your IT/network staff on campus and forward their email to icpsr-help@umich.edu.

If you’re unfamiliar with the term “IP range/address,” here’s a brief explanation from Stephanie Crawford of “How Stuff Works”:

“Every machine on a network has a unique identifier. Just as you would address a letter to send in the mail, computers use the unique identifier to send data to specific computers on a network. Most networks today, including all computers on the Internet, use the TCP/IP protocol as the standard for how to communicate on the network. In the TCP/IP protocol, the unique identifier for a computer is called its IP address.”

Are you setting up a proxy server? Support information is available here: Using proxy servers with the ICPSR website