Disabling and enabling protocols and changing port numbers

Disable unnecessary and unused communication protocol ports—such as SFTP, standard ION protocol, and network ports—to reduce the meter attack surface. Change port number default values to reduce the predictability of port use. See “Protocols, ports and connections" for port defaults.

Leave Secure ION enabled for configuration changes and upgrades. If Secure ION is disabled, use the display, Modbus programming, or webpages to access the meter.

Prerequisites:

  • Meter connection using ION Setup.
  • Login credentials.
  • Security configuration access privileges.

notice

LOSS OF ACCESS

Ensure you maintain sufficient access to communicate with and configure your device.

Failure to follow these instructions can result in loss of access to the device.

 

To disable and enable protocols and change port numbers:

  1. In ION Setup, select the meter, and then open Setup Assistant.
  2. Click Communications > Advanced Ethernet > Protocols.
  3. Select the protocol, and then click Edit.
  4. Change the default port number.
  5. Enable or disable the protocol.
  6. Click OK.
  7. Click Exit.