In solidcore we canot block any ports but we can block executables. Only this required find out which application it will use accordingly you can block that application automaticaly it get control on ports as well.
e.g If you want to block port 25 then you can block all related application outlook etc.
Also one more option there you have to find the DLL files who support the function eg. Internet explore properties and network sharing properties.
It will help you to restrict the access and modification settings.
I already knew the answer but I had to ask anyways
Thanks for answering. I can use it to support my argument.