TLRS1 IP Address Change

Internet2 must change IP addresses for the eduroam-US RADIUS servers (TLRS1.EDUROAM.US and TLRS2.EDUROAM.US).

Based on feedback from the community of eduroam connectors, we will be performing these address changes in two phases. On February 18th at 9pm ET we will change the IP addresses of TLRS1. We will update the address for TLRS2 in March, and will send out instructions next month to assist you in making that change.

Please take immediate action to prevent a loss of service when we make the required configuration changes on Monday February 18th at 9 p.m. ET. Failure to make these changes could cause a loss of eduroam service for your organization.

 
These are the changes required for your TLRS1 related RADIUS client configuration NOW:
  • Add RADIUS clients for the new IP addresses for TLRS1.EDUROAM.US (see information below) so that you can begin to receive requests from them on February 18. Through February 18, you need both the old and new IP addresses. Requests from eduroam will continue to come from the old IP address through February 18. As of February 18, all traffic will use the new IP addresses.

  • Add the new IPs to any existing firewall rules.

  • Change your RADIUS proxies to point to the new IP address. You can use this new IP addresses now to send your requests to eduroam.

  • If you are using DNS entries to route requests to the TLRS servers you will need to restart your RADIUS server to pick up the new DNS records. You may also need to FLUSH THE DNS CACHE on your RADIUS server(s) BEFORE YOU RESTART RADIUS to prevent stale entries from being erroneously retrieved.

Here is the information you will need to make these changes on your network:

DNS Name - tlrs1.eduroam.us
Current IPv4 - 64.57.22.74
Current IPv6 -2001:468:ef01:2::74

When switching to the new IP addresses please use this information

NEW IPv4 - 163.253.31.2
NEW IPv6 - 2001:468:1f11::2

We will notify you when the cutover is complete after Monday February 18th at 9 p.m. ET.  You will then need to perform the following tasks:

  • Remove the old IP addresses for TLRS1.EDUROAM.US from your RADIUS client list.

  • If you are using DNS entries to route requests to the TLRS servers, perform your second service restart (to ensure that your service sees the updated DNS entries). In this case, you will see a service interruption until you do the restart. You may also need to FLUSH THE DNS CACHE on your RADIUS server(s) BEFORE YOU RESTART RADIUS to prevent stale entries from being erroneously retrieved.

If you have any questions about the new address and the steps for this transition we will be holding office hours from 2pm-3pm ET on Monday January 28th, Wednesday January 30th, and Friday February 1st. Members of our technical operations team will be available on a standing phone bridge to answer your questions and assist with any issues you might be encountering as you transition to the new address. The number and meeting ID to join the call:

Dial: 1-669-900-6833  or 1-646-558-8656
Meeting ID: 914 934 895

You can also email eduroam-support [at] internet2.edu with questions about this process or any other aspect of eduroam.