[44net] Raspberry pi VPN

Hi All, After a long wait I finally have my 44 address space and my security certificate. Following the steps on the wiki I have set up the raspberry pi as a vpn client and during boot I see the VPN client start. However just a couple of questions. Do I need to open and redirect a port on my router pointing to the raspberry pi running the vpn and if so which port? Once I have done that, what is the recommended method (software) that should be installed to protect the network both to and from me? Before I add any other software is there a way to test the functionality of what I have done so far? at the moment all it appears to be doing is sitting there and blinking the wireless access LED Equipment is a raspberry B+ running off a UPS with wireless access to my network. Thanks in anticipation, Regards Tony VK3API