phobophiliac be very careful.
IRC port may have been intentionally restricted cause your school admins does not believe it's valuable for knowledge and may be at risk for some kids. There are many story of pedophile assaults resulting of innocent IRC chats...

Anyway admins knows about tunneling work around and may have a moniotoring tools dedicated to trap any event looking like it. You may get trouble and don't believe they would indulgent because you exploit the system, tunnelling is much too well known from many years.


No offense