As reported on August 20, the U.S. EPA Central Data Exchange (CDX) plans to perform system migrations on several Exchange Network services beginning this Friday, September 24. The migrations will happen first in the TEST environment and then in the PRODUCTION environment. The planned dates for these migrations are:
- TEST – Friday, September 24, 2021, 5:00 PM ET to Monday, September 27, 2021, 8:00 AM ET.
- PRODUCTION – Friday, October 15, 2021, 5:00 PM ET to Monday, October 18, 2021, 8:00 AM ET.
What will be the Impact to Partner Agencies?
During these planned migration windows, users of the Exchange Network and CDX Web services listed below will experience outages. Please plan accordingly and schedule any transactions outside of these windows. As part of this migration, some services will be assigned new IP addresses. IMPORTANT: Partner agencies with strict firewall rules may need to adjust those rules to allow traffic from the new IP addresses in order to continue accessing the services. Please see below for the new IP addresses for each service in the TEST and PRODUCTION environments.
All URLs for the impacted services listed below will remain the same as they are today.
What Services will be Impacted?
The services listed below will be migrated to a new environment in both TEST and PRODUCTION. The services marked with ** will also be assigned new IP addresses for inbound and outbound traffic as indicated below.
- **CDX Next Generation Node (NGN)
See New IP Addresses Below - **CDX .Net Node
See New IP Addresses Below - **Exchange Network Services Center (ENSC)
See New IP Addresses Below - **Exchange Network Discovery Service (ENDS)
See New IP Addresses Below - Shared CROMERR Services (SCS)
No impact to current IP address - CDX Web
No impact to current IP address
New IP Addresses – TEST
These new IP addresses will be effective in the TEST environment after the planned migration on September 24, 2021.
Traffic going TO the TEST NGN and .Net Node/ENDS/ENSC will go to the same IP address as the test NAAS:
204.47.254.135
Traffic coming FROM the TEST NGN and .Net Node/ENDS/ENSC will be from one of the following IPs (at random):
134.67.179.44
134.67.179.45
134.67.179.46
134.67.179.47
161.80.1.160
161.80.1.161
161.80.1.162
161.80.1.163
Please adjust your agency’s firewall rules accordingly.
New IP Addresses – PRODUCTION
These new IP addresses will be effective in the PRODUCTION environment after the planned migration on October 15, 2021.
Traffic going TO the PRODUCTION NGN and .Net Node/ENDS/ENSC will go to the same IP address as the production NAAS:
204.47.254.197
Traffic coming FROM the PRODUCTION NGN and .Net Node/ENDS/ENSC will be from one of the following IPs at random (Note: these are the same as in TEST):
134.67.179.44
134.67.179.45
134.67.179.46
134.67.179.47
161.80.1.160
161.80.1.161
161.80.1.162
161.80.1.163
Please adjust your agency’s firewall rules accordingly.
Have Questions?
Please direct any questions or concerns to the Exchange Network Help Desk:
- Email: [email protected]
- Phone: 1-888-890-1995 (Select Option 1 and then Option 5 from the menu)
Available 8:00 AM – 6:00 PM Eastern