Change IP Address of Mail security

Hi,

we are planning to move our server from our main office to another office that is not in the same IP range

running standalone no appliance, it's running on a Windows Server 2008 R2 STD

I would like to know what configurations / steps I should do to make it work with the new IP address 

Triton Infrastructure 7.6.2.18 setup is installed 

websense email security Version 7.3.0..01158 

Hotfix = WES_7.3_HF8 installed

What shoudl I do to get it running with the new ip address that woul be in 10.1.25.x instead of 192.168.1.x network

I copied it into a virtual server to try the configuration and get prepared for the go live.

thanks a lot for your help

Daniel