GSS 2.5 - Change IP-Address of Server

Hello!

I will use GSS 3.2 from 2018, at the moment I´m just evaluating it, but untill then I need to keep my GSS 2.5-Installation alive.

For this purpose I need to change the IP-Address of my Windows Server 2008R2 on which the GSS-2.5-Server is installed at the moment.
My Question is: What will I have to do for GSS 2.5 working on that Server and communicating with the Clients after that IP-Change?

[Although I have a maintenance contract with Symantec for GSS for many years they, will ridiculously not answer my question because GSS 2.5 Support ended in Summer 2016.]

Thanks in forward!

TJ