Retreker another way of nat

http://translate.google.com/translate?hl=ru&sl=auto&tl=en&u=http%3A%2F%2Fru.wikipedia.org%2Fwiki%2F%D0%A0%D0%B5%D1%82%D1%80%D0%B5%D0%BA%D0%B5%D1%80


we can use this in dc++ ?

http://nnm-club.me/forum/viewtopic.php?t=142073

i have a problem like this and i am looking for a solution! i live in a campus of school and we have a local ip an 500 pc . and between as we have trafic like a 1gb and we want to find a way how to use this trafic!

and another thing is we have 5 campuses with 500 pc in each campus and we try to connect theat!

i wait for a solution please
thanks