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.
Changing your IP information:
- ICPSR Representative(s): request an update to your IP range(s) and IP address(es) on file at ICPSR by contacting icpsr-help@umich.edu. Please provide IP information in CIDR format. ICPSR Representatives may review current IP information here: Managing Your Institution’s Membership: Tools for ICPSR Representatives.
- 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.
About IP addresses:
An individual IP address in CIDR format looks something like this: 141.211.81.142/32
An some cases an IP address looks something like this: 141.211.81.142
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