There are various reasons...
You have to take a port over 1024 since on *nix OS they are reserved for root.
Probably the provider firewalled you, that would mean -> gg.
Maybe the mac internal firewall is still active, you're save to disable it at all, since
the router you own firewalls all ports you don't make exception rules for anyway.
And it's a mac, and mac users think they're safe in general... so turn the macs firewall off!
PS:
Ozza you phail!
_________________
I know what you're asking yourself and the answer is yes. I have a nick name for my penis. Its called the Octagon, but I also nick named my testes - my left one is James Westfall and my right one is Doctor Kenneth Noisewater. You ladies play your cards right you just might get to meet the whole gang. - Brian Fantana
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