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NOTICE DATE: May 20, 2021

NOTICE TYPE: M-A051221-02 Operations

SHORT DESCRIPTION: Reminder - New IP Addresses for Inbound Production NAESB URL

INTENDED AUDIENCE: All Market Participants 

DAYS AFFECTED: Sunday, May 30, 2021 from 09:00

LONG DESCRIPTION:  To improve the security of ERCOT's North American Energy Standards Board (NAESB) Electronic Delivery Mechanism (EDM), ERCOT is placing inbound NAESB traffic behind a Web Application Firewall (WAF) beginning on 5/30/2020 at 09:00.

ACTION REQUIRED:

All Market Participants that transmit files via NAESB must ensure their systems can send to the new IP addresses.

The specific changes to the services are listed below:

NAESB URL

https://naesb.ercot.com:7403/ipnet/naesb - no change

IP Configurations

New Public IP Addresses

Inbound to ERCOT (naesb.ercot.com) could be any of the following subnet ranges:

199.83.128.0/21
198.143.32.0/19
149.126.72.0/21
103.28.248.0/22
45.64.64.0/22
185.11.124.0/22 
192.230.64.0/18
107.154.0.0/16
45.60.0.0/16
45.223.0.0/16

2a02:e980::/29

Port (no change) – 7403

Former Public IP Addresses Inbound to ERCOT (naesb.ercot.com) - 66.128.17.102 and 66.128.16.102

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

If you are receiving email from a public ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com.

 

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