I had to change the IP address on a Clariion CX4-120. Here’s the steps that I went through:
In a web browser, go to https://
Change the IP address, then let it reload the SP (SPA)
Change the second one (SPB) – it might auto-populate the correct peer IP address – if not, change to correct IP
This results in each SP being bounced (one at a time, otherwise you’ll end up with an outage). At the end of the day, you’ll be able to re-IP the box pretty easily.