But, in fact, the port is closed:
Starting nmap 3.81 ( http://www.insecure.org/nmap/
) at 2007-02-21 09:35 EST
Interesting ports on 66-190-xxx-149 :
PORT STATE SERVICE
22349/tcp filtered unknown
Filtered means that it's not open.
Here's what's probably happening. Most firewalls work by applying a set of rules in this order -- once a rule is met, the firewall is done and moves on to the next packet of data.
1) Everything from the inside is allowed unless specifically blocked
2) Anything that returns from the outside after being sent from the inside can come back in if the 'header' on the incoming packet matches the 'header' on the outgoing one.
3) Everything from the outside is blocked unless specifically allowed.
So, what's probably happening is:
A.1) You use utorrent to check port 22349. It sends a request to utorrent's website. B/c the request originated on your PC and isn't specifically blocked, it's allowed out (just like any time you visit a website). B/c the request originated on your PC, and is returning w/ the same 'header,' the return is allowed back. Utorrent sees this and says that your port is open.
A.2) Same as before, but when Utorrent sends a request to port 22349, your firewall program intercepts it. B/c of the way it's set up, utorrent's website interprets that as open and tells you so, but it's not utorrent that's responding, it's your firewall, and your firewall is letting the traffic die.
Now, back in etree:
B) Someone gets your IP addy and port from bt.etree, and tries to connect on port 22349. Rule 1 doesn't apply. Rule 2 doesn't apply. Rule 3 says "I don't know who you are" and drops the packet. You are, in fact, firewalled.
This is usually done by a piece of software, b/c a home router usually doesn't have enough settings to do something so complicated. Either the port is open, or it's closed. The exception is "gaming mode" or "virtual server" mode, which does something like case #2) above.
So, the question is, what hardware and software do you have running? There's no way to make a suggestion w/o knowing more.