The network provider says that it’s implementing Carrier-Grade NAT (CGNAT) for security purposes so that bad actors won’t be able to identify public IPv4 addresses assigned to customers. This migration could also be a way for TM to deal with the issue of IPv4 address exhaustion.
For users who will be inevitably involved in this exercise, TM lists some of the services that may be affected, including non-cloud-based CCTVs, server hosting services, and online multiplayer games hosted by the customer. The migration will be implemented in stages, which apparently began in mid-September 2021, with expectations for the exercise to be completed in January 2022. For those who have a file-sharing service, FTP, or NAS that uses a public IP, be aware that the exercise will run between 2 to 4 AM and those affected may experience a brief downtime lasting anywhere between two to five minutes. If you’re worried about whether you might have to configure the IP to access your devices, TM advises customers to check with the device manufacturer for further clarifications. (Thanks for the tips, @hiw200!)
