Other than adding the rules for PS/3 manually, it be nice if there was some settings in Smartdefense...Theres some weirdness similar to the Xbox360 but not quite the same.. Unlike the 360 the PS/3 seems to work mostly in the DMZ, which is *NOT* the case with the 360... (theres some VOIP involved with the Sony)
See ISPs setup for PS3

Sonys half-done instructions
The non-sony instructions are a bit more detailed and describe the voice channel..

Thank you for your suggestion.

If you are having issues with PS/3 compatibility, free to contact support, and we will try to help you.

The SofaWare Team