Getting the Request origin IP

Hi to all,

I'm new to FIM and been stuglling with a task which is to log the IP of the PC which is requesting password reset or the IP of the PC where na "user is changed" in FIM Portal.

I have created na Custom activity  by following the

"Walkthrough: Create a Logging Custom Activity and Deploy it to the FIM Portal",

 but unfortunatly i could confirm that the "RequestType" object does not contains this IP/Remote Address property.

Does anyone can help me or guide me on how to achive this goal?

Thank You all in advance

Cheers