HP ILO4 (Integrated Lights Out) File Transfer and copy

Our site has a couples of HP DL380 Gen 8 server. We are using ILO4 (ILO Firmware is 2.0.x) and configured for "Remote Support". Recently, we have a new requirement and we need to use HP ILO4 to transfer file from our client machine to the remote control Server (Running Windows 2012 R2). Here are our questions:

1) If we need to use HP ILO4 for file transfer, shall we use the "Virtual Media" function or other options ?

2) Is there any extra firewall ports need to be open in order to facilitate the file transfer ?

3) Our objective is to copy file to and from the HP DL380 Gen 8 server with ILO4 port, kindly let us know the correct way for file copy is "Virtual Media" is not the right direction ?

Thank you for your advice in advance.
Regards
Patrick