What ports does EU2 (and preferably all of the Paradox games) use?

[unmerged(45754)]

Ok, at my university I am trying to get the Paradox games unblocked so that I may play them online with friends who are not at college or on valkyrie net. Does anyone know what the ports are that EU2, and preferably CK, Victoria and HoI2 need to play games?

Thank you in advance!

 

[AndrewT]

See post #2 in here.

 

[kurtbrian]

this should go here...